Boom-bust patterns in the Brazilian Amazon
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Written from the paper’s full text.
TL;DR
The paper re-examines the boom-bust hypothesis for the Brazilian Amazon and finds no time-series evidence that deforestation-driven development follows an inverted-U pattern. It argues that the influential cross-sectional boom-bust result is a spurious artifact of spatial clustering, especially unobserved differences involving Amazonas and Maranhão.
Key findings
- Cross-sectional boom-bust evidence is fragile: the pattern is driven by spatial correlation, particularly low-HDI municipalities clustered in Amazonas and Maranhão. In Amazonas, the average municipality’s rural poverty percentile rank rose from 46 in 1980 to 94 in 2000; Maranhão remained persistently poor (rural poverty rank 73 in 1980, 68 in 2000) with no prior “boom” to bust from.
- HDI rose monotonically across Amazonian municipalities from 1991 to 2010, with no inverted-U. Mean HDI for the whole MCA sample rose from .327 in 1991 to .453 in 2000 to .613 in 2010; post-frontier MCAs rose from .322 to .461 to .623 over the same years.
- Post-frontier municipalities did not show a bust. In convergence regressions, the post-frontier dummy was positive and significant in the full 1991–2010 sample (0.005) and not significantly different from zero in the 2000–2010 sample (0.002); the pre-frontier dummy was negative and significant (−0.020* in 2000–2010), opposite the boom-bust prediction.
- Fixed-effects panel estimates reject an inverted-U relationship. The squared deforestation term was positive and significant in the baseline specification (0.041), and interacted squared terms for the Rodrigues sample or post-frontier group were not statistically significant. Post-frontier municipalities also grew about as much as the rest of the Amazon in 2000–2007 (34.7% vs. 33.7% for Legal Amazon; 23.9% for all Brazil).
Methods
- The paper combines re-analysis of cross-sectional data with new panel/time-series data: IPEA/IBGE census data for N=254 minimum comparable areas (MCAs) from 1970 with poverty and GDP; UNDP HDI data for N=773 municipalities in 1991, 2000, and 2010; and a merged UNDP HDI–INPE deforestation panel for N=447 MCAs (1991–2010), reduced to N=306 for 1991 due to matching issues.
- Cross-sectional analysis maps and percentile ranks municipalities by frontier stage and HDI; time-series analysis uses Trellis plots, convergence regressions of HDI change on lagged HDI with pre-frontier/intermediate/post-frontier dummies, and fixed-effects panel regressions of HDI on proportion deforested and its square, with MCA and year effects. Hausman tests reject random effects (p<0.001).
- Because 1991 municipality-level deforestation data are unavailable, the authors estimate 1991 deforestation by apportioning state-level INPE data across MCAs using 1995 MCA deforestation shares.
Limitations
- Stated: the analysis cannot draw causal conclusions about deforestation and human well-being; the authors cannot say what drives well-being or whether deforestation is one of the drivers. The data construction relies on assumptions that INPE change-in-deforestation data were matched well, that 1995 MCA deforestation distribution proxies for 1991, and that dropped MCAs were not systematically different.
- Stated: the boom-bust test may miss cycles with different periodicity and cannot detect busts after 2000; the poverty-based boom-bust criterion is “ad-hoc” and does not require statistical significance.
- Evident from the text: HDI is observed at only three time points (1991, 2000, 2010), limiting detection of shorter dynamic cycles; 1991 deforestation is estimated rather than directly observed; and the cross-sectional critique depends on spatial heterogeneity and unobserved regional differences.
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Claims the paper makes
1 of 7 cited sources checked · 0 supported · 0 flagged · accuracy not yet measured
- Premisecitation
A number of longitudinal case studies of Amazonian communities provide evidence not of boom-bust cycles, but instead of stable or continuing welfare improvements over time.
“a number of case studies (for example Sears et al. 2007, Piñedo-Vasquez et al. 2001, Guedes et al. 2012, Hall and Caviglia-Harris 2013, Mangabeira 2010) that have examined the dynamic trajectories of different Amazonian communities for between 7 to 22 years provide evidence not of boom-bust cycles, but instead either stable or continuing welfare improvements over time.”
- Also stated in: § 2. Boom-bust cycles in the Amazon: some recent evidence · plain
“However in our survey of evidence generated from a number of more localized longitudinal case studies (which for the most part did not have as their primary objective to examine the boom-bust hypothesis) we fail to find any boom-bust pattern.”
Quote in the paperSubstantial claim1 of 3 sources checked- cites Sears et al. 2007 source
- cites Piñedo-Vasquez et al. 2001 source
- cites Guedes et al. 2012 source
The Data and Methods section describes a longitudinal comparison of households surveyed in 1997/1998 and 2005, and the Discussion and Final Remarks reports declining poverty and inequality during that period. But the paper does not establish a stable or continuing improvement trajectory: it says gains may reach a limit and may replicate boom-and-bust trends. Page numbers are not available in our copy. (LLM, conf=0.84)
Experimental — accuracy not yet measured
- Also stated in: § 2. Boom-bust cycles in the Amazon: some recent evidence · plain
- Findingown data
Municipalities categorized as post-frontier or pre-frontier in 2000 enjoyed equal increases in HDI over the subsequent decade as the rest of the Amazon.
“Municipalities categorized as either 'post-frontier' or 'pre-frontier' in 2000 enjoyed equal increases in HDI over the subsequent decade as the rest of the Amazon.”
Quote in the paperSubstantial claim - Findingown data
Using new panel data on HDI and deforestation rates from 1991 to 2010, there is no evidence of boom-bust patterns in the time series.
“using new panel data on the Human Development Index (HDI) and deforestation rates from 1991 to 2010 we find no evidence of such boom-bust patterns in the time series.”
- Also stated in: § 1. Introduction · boosted
“we show that, consistent with the case studies, there is no evidence of boom-bust cycles in the time series data.”
Quote in the paperSubstantial claim - Also stated in: § 1. Introduction · boosted
- Findingcitation
In Machadinho do Oeste, housing quality increased over time.
“Housing quality also increased over time.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Mangabeira (2010)
- Findingown data
There are no clear systematic differences in the upward HDI trend between municipalities categorized by Rodrigues et al. as in different stages of frontier development.
“there are no clear systematic differences in this upward trend between municipalities categorized by Rodrigues et al. as in different stages of frontier development.”
Quote in the paperSubstantial claim
- Findingown data
Until very recently, the post-frontier municipalities have had worse economic outcomes than the rest of Brazil and the rest of the Amazon since the 1970s.
“until very recently these municipalities have had worse economic outcomes than the rest of Brazil, and the rest of the Amazon, since the 1970s.”
Quote in the paperSubstantial claim - Findingcitation
In Machadinho do Oeste, per capita agricultural output rose steeply from 1986 to 1999 and then steadily, but more slowly, through 2008.
“per capita agricultural output having risen steeply from 1986 to 1999 and then steadily, but more slowly, through 2008.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Mangabeira (2010)
- Findingown data
In Table 5 column (8), none of the squared terms are statistically significantly different from zero.
“None of the squared terms are statistically significantly different from zero.”
Quote in the paperSubstantial claim- The authors state this as an assumption: The INPE change-in-deforestation data can be matched sufficiently well to the main INPE data set.
- The authors state this as an assumption: The distribution of 1995 MCA deforestation derived from merging is strongly correlated with the actual distribution across MCAs of deforestation in 1991.
- The authors state this as an assumption: Deforestation rates in the municipalities dropped due to merging difficulties were not significantly and systematically different from municipalities that were retained.
- Findingown data
None of the municipalities in the UNDP HDI data display any kind of boom-bust inverted-U trend.
“we find none of municipalities displaying any kind of boom-bust inverted-U trend”
Quote in the paperSubstantial claim - Findingown data
A fixed effects panel data analysis of the relationship between HDI and deforestation controlling for time-invariant fixed effects fails to find any evidence of within time-series inverted-U patterns that would be consistent with deforestation-moderated socio-economic booms and busts.
“a fixed effects panel data analysis of the relationship between HDI and deforestation controlling for timeinvariant fixed effects fails to find any evidence of within time-series inverted-U patterns that would be consistent with deforestation-moderated socio-economic booms and busts.”
Quote in the paperSubstantial claim- The authors state this as an assumption: The INPE change-in-deforestation data can be matched sufficiently well to the main INPE data set.
- The authors state this as an assumption: The distribution of 1995 MCA deforestation derived from merging is strongly correlated with the actual distribution across MCAs of deforestation in 1991.
- The authors state this as an assumption: Deforestation rates in the municipalities dropped due to merging difficulties were not significantly and systematically different from municipalities that were retained.
- Findingown data
Panel data analysis with fixed effects robustly rejects the hypothesis that HDI and deforestation follow an inverted-U relationship.
“Panel data analysis with fixed effects (within estimation) robustly rejects the hypothesis that HDI and deforestation follow an inverted-U relationship.”
Quote in the paperSubstantial claim - Findingown data
The post-frontier region has underperformed economically for decades.
“This was an even more impressive achievement given that this region has underperformed economically for decades.”
Quote in the paperSubstantial claim - Findingcitation
In Machadinho do Oeste, real monthly household consumption expenditures rose steadily from R$ 91 in 1999 to R$ 312 in 2008 (in 2012 R$).
“Real monthly household consumption expenditures rose steadily from R$ 91 in 1999 to R$ 312 in 2008 (in 2012 R$)”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Mangabeira (2010)
- Findingcitation
Two out of eleven candidate municipalities were categorised in the Rodrigues et al. dataset as relatively uncleared in 2000 at the pre-frontier stage, with the rest uncategorised.
“Two out of eleven were categorised in the Rodrigues et al. dataset as being relatively uncleared in 2000 (at the pre-frontier stage), respectively, with the rest uncategorised.”
Quote in the paperSubstantial claim - Findingown data
There is no evidence of any boom in the pre-2000 period for the post-frontier municipalities.
“Furthermore, there is no evidence of any boom in the pre-2000 period”
Quote in the paperSubstantial claim - Findingown data
One municipality experienced boom-bust patterns in both urban and rural poverty rates.
“One municipality experienced boombust patterns in both urban and rural poverty rates”
Quote in the paperNot a substantial claim - Findingreasoning
The total number of municipalities in the paper's list of boom-bust candidates is eleven.
“so the total number of municipalities in our list of candidates is eleven.”
Quote in the paperNot a substantial claim - Findingown data
In Table 4 column (1), the year dummy for 2010 is positive, indicating that on average HDI increased more between 2000-2010 than between 1991-2000.
“the year dummy for 2010 is positive, indicating that on average HDI increased more between 2000-2010 than between 1991-2000”
Quote in the paperNot a substantial claim - Findingown data
Since 1991 HDI has been uniformly trending upwards across all municipalities.
“since 1991 HDI has been uniformly trending upwards across all municipalities.”
Quote in the paperSubstantial claim - Findingown data
Municipalities most likely to be in the 'bust' phase, categorised as 'post-frontier' by Rodrigues et al., have improved their measures of HDI at least as much as the rest of the region, despite having been economic underperformers since the 1970s.
“we show that municipalities most likely to be in the 'bust' phase of the cycle, categorised as 'post-frontier' by Rodrigues et al. themselves, have improved their measures of HDI at least as much as the rest of the region, despite having been economic underperformers since the 1970s.”
Quote in the paperSubstantial claim - Interpretationreasoning
Cross-sectional patterns of land clearing and human well-being can be misleading when variation across municipalities is not a convincing proxy for variation through time within municipalities, as in the heterogeneous Brazilian Amazon.
“We have shown that cross sectional patterns of land clearing and human well-being can be misleading when the variation across municipalities is not a convincing proxy for the variation through time within municipalities, such as in the case of the Brazilian Amazon with its high degree of historical, environmental, and economic heterogeneity.”
Quote in the paperSubstantial claim - Interpretationown data
The paper finds no evidence that any boom-bust has occurred in any Brazilian municipality over the past 30 years.
“We find no evidence that any boom-bust has occurred in any Brazilian municipality over the past 30 years.”
Quote in the paperSubstantial claim - Interpretationown data
The results are actually more consistent with a positive time series correlation between HDI and deforestation, especially in post-frontier areas.
“In all, the results are actually more consistent with a positive time series correlation between HDI and deforestation, especially in those areas that are in their post-frontier stage of development.”
Quote in the paperSubstantial claim- The authors state this as an assumption: The INPE change-in-deforestation data can be matched sufficiently well to the main INPE data set.
- The authors state this as an assumption: The distribution of 1995 MCA deforestation derived from merging is strongly correlated with the actual distribution across MCAs of deforestation in 1991.
- The authors state this as an assumption: Deforestation rates in the municipalities dropped due to merging difficulties were not significantly and systematically different from municipalities that were retained.
- Interpretationown data
The results from analyses of GDP and poverty census data, HDI time trends, and fixed effects panel data estimation of deforestation and HDI all strongly and robustly point to the conclusion that there is no time series evidence of boom-bust patterns in either incomes or HDI, in relation to deforestation or anything else.
“The results from our analyses of GDP and poverty census data, HDI time trends, and fixed effects panel data estimation of deforestation and HDI all strongly and robustly point to the same conclusion: there is no time series evidence of boom-bust patterns in either incomes or HDI, in relation to deforestation or anything else.”
Quote in the paperSubstantial claim- The authors state this as an assumption: The INPE change-in-deforestation data can be matched sufficiently well to the main INPE data set.
- The authors state this as an assumption: The distribution of 1995 MCA deforestation derived from merging is strongly correlated with the actual distribution across MCAs of deforestation in 1991.
- The authors state this as an assumption: Deforestation rates in the municipalities dropped due to merging difficulties were not significantly and systematically different from municipalities that were retained.
- Interpretationreasoning
To the extent that unobserved regional differences are correlated with HDI and land clearing, spatial heterogeneity could produce a spurious interpretation of the relationship between deforestation and development.
“To the extent that any of these (unobserved) differences are correlated with HDI (or other measures of wellbeing) and land clearing, this spatial heterogeneity could result in a spurious interpretation of the relationship between deforestation and development.”
Quote in the paperSubstantial claim - Interpretationown data
None of the identified candidate municipalities seem likely candidates for a convincing boom-bust story.
“We conclude that none of these seem likely candidates for a convincing boom-bust story.”
Quote in the paperSubstantial claim - Interpretationown data
The 'boom-bust' pattern observed in cross-sectional studies is quite fragile and most likely a spurious artefact of spatial correlation, driven primarily by large, multifaceted and unobserved differences between municipalities in Amazonas and Maranhão states.
“We show that the 'boom-bust' pattern observed in these studies is quite fragile and most likely a spurious artefact of spatial correlation, driven primarily by the large, multifaceted (and unobserved) differences between municipalities in Amazonas and Maranhão states.”
Quote in the paperSubstantial claim - Interpretationown data
The cross-sectional boom-bust results are a spurious artifact of spatial correlation, driven primarily by large, multifaceted, unobserved differences between municipalities in and around Amazonas and Maranhão.
“We show that the cross sectional results are a spurious artifact of spatial correlation, driven primarily by the large, multifaceted (and unobserved) differences between municipalities in the states of Amazonas and Maranhão.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Rodrigues et al. (2009) source
- Interpretationreasoning
By itself, the observation that cross-sectional patterns can be misleading is not strong evidence that boom-bust patterns do not occur.
“However by itself this observation is not strong evidence that boom-bust patterns do not occur.”
Quote in the paperSubstantial claim - Interpretationown data
The paper's results robustly show that the time series patterns are not consistent with the boom-bust relationships found in the cross-sectional patterns.
“Our results robustly show that the time series patterns are not consistent with the boom-bust relationships found in the cross-sectional patterns”
Quote in the paperSubstantial claim - Interpretationown data
Human well-being in the Amazon has been steadily increasing over the last 25 years (at least).
“Human well-being in the Amazon has been steadily increasing over the last 25 years (at least)”
Quote in the paperSubstantial claim - Interpretationown data
There is no robust evidence in either the cross section or the time series data of any 'boom-bust' patterns of development in the Brazilian Amazon.
“In sum, we conclude that there is no robust evidence in either the cross section or the time series data of any 'boom-bust' patterns of development in the Brazilian Amazon.”
Quote in the paperSubstantial claim
- May combine two claims. 30
- Classified as probably not a substantial claim. 11
May combine two claims.
Findingown dataThe post-frontier group of municipalities grew almost exactly as much in 2000-2007 as the rest of the Amazon, and more than for all of Brazil.
“The post-frontier group of municipalities grew almost exactly as much in 2000-2007 as the rest of the Amazon, and more than for all of Brazil.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataIn Table 4 column (2), the coefficient on pre-frontier municipalities (G1) is negative and significant, indicating that the change in HDI for this group was actually lower than average.
“the coefficient on pre-frontier municipalities (G1) is negative and significant, indicating that the change in HDI for this group was actually lower than average.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataOf the 254 Amazonian municipalities for which data were available, using the paper's criteria there were 9 boom-bust cycles in urban poverty and 3 boom-bust cycles of rural poverty within the sample period.
“Of the 254 Amazonian municipalities for which we have data, using these criteria there were 9 boom-bust cycles in urban poverty and 3 boom-bust cycles of rural poverty within the sample period.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataThe population-weighted average rural poverty rate in Amazonas was 4% less than the average for all Legal Amazonia in 1980, and 113% of the regional figure by 2000.
“this trend can also be seen using population-weighted averages -in 1980 the population-weighted average rural poverty rate in Amazonas was 4% less than the average for all Legal Amazonia, whereas by 2000 the rate was 113% of the regional figure.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataIn Table 4 column (4), the coefficient on the G1 dummy variable is negative and significant, the opposite of the boom-bust prediction.
“the coefficient on the G1 dummy variable is negative and significant, the opposite of the boom-bust prediction”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataFigure 1's map-observations display the boom-bust pattern: pre-frontier municipalities have low HDI, intermediate municipalities have relatively high HDI, and post-frontier municipalities again have low HDI.
“The map-observations of Figure 1 clearly display the 'boom-bust' pattern, with the coloured municipalities in lesser cleared areas (prefrontier) displaying low levels (red) of HDI, the coloured municipalities in the middle categories displaying relatively high (green) HDI, and the more cleared municipalities in the post-frontier displaying again low levels of HDI.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataIn 1980 the average municipality in Amazonas had higher rural poverty rates than 46% of all municipalities in Legal Amazonia; by 2000 it had higher poverty rates than 94% of municipalities.
“For example, in 1980 the average municipality in Amazonas had a higher rural poverty rates than 46% of all municipalities in Legal Amazonia.By the year 2000, they had higher poverty rates than 94% of municipalities”
Quote in the paperSubstantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Findingown dataFigure 1 illustrates a very high degree of spatial clustering of these municipalities.
“Figure 1 clearly illustrates the very high degree of spatial clustering of these municipalities.”
Quote in the paperNot a substantial claimMay combine two claims.
Findingown dataMunicipalities with low HDI in pre-frontier areas are almost exclusively clustered in the far western edge of Amazonas, and municipalities responsible for the bust part of the relationship are tightly clustered in the historically poor Northeastern region in and around Maranhão.
“The municipalities with low levels of HDI in pre-frontier areas are almost exclusively clustered in the far western edge of Amazonas, and, even more striking, the municipalities responsible for the 'bust' part of the relationship -those with low levels of HDI in the post-frontier regions -are tightly clustered in the historically poor Northeastern region in and around the state of Maranhão”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataIn Table 5 column (7), the interacted squared term displays the boom-bust negative sign but is not statistically different from zero.
“We find that although the interacted squared term now displays the boom-bust negative sign, it is not statistically different from zero.”
Quote in the paperNot a substantial claim- The authors state this as an assumption: The INPE change-in-deforestation data can be matched sufficiently well to the main INPE data set.
- The authors state this as an assumption: The distribution of 1995 MCA deforestation derived from merging is strongly correlated with the actual distribution across MCAs of deforestation in 1991.
- The authors state this as an assumption: Deforestation rates in the municipalities dropped due to merging difficulties were not significantly and systematically different from municipalities that were retained.
May combine two claims.
Findingown dataIn Table 5 column (5), the baseline model controlling only for extent of deforestation shows deforestation is positive and statistically significant.
“In column (5) we present the baseline model controlling only for extent of deforestation, which is positive and statistically significant.”
Quote in the paperNot a substantial claim- The authors state this as an assumption: The INPE change-in-deforestation data can be matched sufficiently well to the main INPE data set.
- The authors state this as an assumption: The distribution of 1995 MCA deforestation derived from merging is strongly correlated with the actual distribution across MCAs of deforestation in 1991.
- The authors state this as an assumption: Deforestation rates in the municipalities dropped due to merging difficulties were not significantly and systematically different from municipalities that were retained.
May combine two claims.
Findingown dataIn Table 4 column (4), neither the G2 nor G3 dummies are statistically different from zero.
“while neither the G2 nor G3 dummies are statistically different from zero.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataMunicipalities in Amazonas have fallen behind as large numbers of poor internal migrants moved to the region, while the relative poverty of Maranhão remained virtually stagnant over the entire period.
“Thus while municipalities in Amazonas have fallen behind as large numbers of poor internal migrants have moved to the region, the relative poverty of Maranhão has remained virtually stagnant over the entire period.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataNone of the identified candidate municipalities have any significant degree of clearing; the highest is 7% of area deforested.
“we find none of the identified municipalities have any significant degree of clearing (the highest is 7% of area deforested).”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataThe average percentile rank of municipalities in Maranhão remained consistently high for poverty rates and near the bottom for median household income.
“At the same time, the average percentile rank of municipalities in Maranhão have remained consistently high for poverty rates (e.g.near the top of the distribution) and near the bottom for median household income (e.g.near the bottom of the distribution).”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataIn Table 4 column (2), the coefficient on the post-frontier group (G3) is positive and significant, contrary to any 'bust' in human development.
“the coefficient on the post-frontier group (G3) is positive and significant, contrary to any 'bust' in human development.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataIn Table 4 column (1), the lagged HDI term is negative and highly statistically significant, indicating a strong tendency towards convergence.
“The lagged HDI term is negative and highly statistically significant, indicating a strong tendency towards convergence”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataIn Table 5 column (6), controlling for the square of deforestation, the squared term is positive and significant, contrary to the boom-bust prediction.
“In column (6) we additionally control for the square of deforestation, but contrary to the boom-bust prediction we find the squared term to be positive and significant.”
Quote in the paperSubstantial claim- The authors state this as an assumption: The INPE change-in-deforestation data can be matched sufficiently well to the main INPE data set.
- The authors state this as an assumption: The distribution of 1995 MCA deforestation derived from merging is strongly correlated with the actual distribution across MCAs of deforestation in 1991.
- The authors state this as an assumption: Deforestation rates in the municipalities dropped due to merging difficulties were not significantly and systematically different from municipalities that were retained.
May combine two claims.
Study design and conductreasoningThe paper cannot say what the underlying drivers of human well-being are, beyond that they display a tendency towards convergence, or even if deforestation is one of them.
“we cannot say what the underlying drivers of human well-being are (beyond that they display a tendency towards convergence), or even if deforestation is one of them.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing), S4 (based). May combine two claims.
Premisenone givenThe boom-bust idea has recently seen some empirical support in cross-sectional analyses, while longitudinal case studies have repeatedly failed to find evidence of post-clearing 'busts.'
“While this idea has recently seen some empirical support in cross-sectional analyses, longitudinal case studies have repeatedly failed to find evidence of post-clearing 'busts.'”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Interpretationown dataThe rate of increase in human well-being is a function of both convergence dynamics and a host of other causal factors not analyzed in the paper.
“the rate of this increase is a function of both convergence dynamics and a host of other causal factors that we have not analyzed here.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S2 (checkable), S3 (load-bearing), S4 (based).
Interpretationnone givenThe deep, generalized, persistent poverty of Maranhão is arguably more related to the secular history of colonization in Northeast Brazil than to any particular development path within Amazonia.
“whose deep, generalized, and persistent poverty is arguably a phenomenon that has more to do with the secular history of colonization in the Northeast region of Brazil than it does with any particular development path within Amazonia.”
Quote in the paperNot a substantial claimMay combine two claims.
InterpretationreasoningAlthough none of the identified longitudinal case study analyses show evidence of boom-bust patterns, this evidence by itself cannot rule out the possibility that the inverted-U pattern occurred elsewhere.
“Furthermore, while none of the longitudinal case study analyses we identified show evidence of boom-bust patterns, neither can this evidence by itself rule out the possibility that this inverted-U pattern could have occurred elsewhere ('absence of evidence is not evidence of absence').”
Quote in the paperSubstantial claimMay combine two claims.
Interpretationown dataThere is no sign of a bust in Maranhão because there was never any height to fall from, as its municipalities have persistently ranked near the bottom in human development.
“In other words, there is no sign of a 'bust' in Maranhão -there was never any height to fall from as the municipalities have persistently ranked near the bottom in human development.”
Quote in the paperSubstantial claimMay combine two claims.
Study design and conductown dataHausman tests reject random effects estimation (p<0.001), so a fixed effects functional form is adopted.
“Hausman tests reject random effects (RE) estimation (p<0.001)so a fixed effects (FE) functional form is adopted.”
Quote in the paperSubstantial claimMay combine two claims.
Study design and conductreasoningBy controlling for MCA fixed effects, the analysis captures all time-invariant characteristics of each MCA and ensures that only the relationship between HDI and deforestation within MCAs over time is observed.
“By controlling for MCA fixed effects we capture all time- invariant characteristics of each MCA and ensure that we observe only the relationship between HDI and deforestation within MCA's over time.”
Quote in the paperSubstantial claimMay combine two claims.
InterpretationreasoningThe lack of any evidence of busts among local-level studies is remarkable and would be unusual if boom-bust were as widespread as cross-sectional studies suggest.
“Furthermore, the lack of any evidence of 'busts' among studies conducted at the local level is remarkable, and would be quite unusual if in fact it were as much of a widespread phenomenon as the cross sectional studies seem to suggest.”
Quote in the paperSubstantial claimMay combine two claims.
Study design and conductown dataThe analysis should be cautious because boom and bust may have occurred with a different enough periodicity that it cannot be detected, and busts occurring after 2000 will not be detected.
“Of course, we should exercise caution as the boom and bust may have occurred with a different enough periodicity that we cannot detect it, and we will not detect 'busts' that occurred post-2000.”
Quote in the paperSubstantial claimProbably not a substantial claim: may not pass S4 (based). May combine two claims.
Premisenone givenThe Brazilian Amazon is a highly heterogeneous area with several distinct regions, each with its own history and unique economic, geographic, and climatic characteristics.
“The Brazilian Amazon, however, is a highly heterogeneous area with several distinct regions, each with their own history and unique economic, geographic, and climactic characteristics.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S4 (based).
Premisenone givenIf a boom-bust pattern exists, it should manifest as a negative coefficient estimate on the squared deforestation variable.
“If a boombust pattern exists, it should manifest as a negative coefficient estimate on the squared deforestation variable, b2 .”
Quote in the paperNot a substantial claimClassified as probably not a substantial claim. May combine two claims.
PremisereasoningThe boom-bust hypothesis predicts that HDI would increase faster in pre-frontier municipalities (G1) and either decrease or increase more slowly in post-frontier municipalities (G3).
“the boom-bust hypothesis would unambiguously predict that HDI would increase faster in municipalities in the prefrontier category (G1), and either decrease (for strong boom-bust) or increase more slowly (for a weaker boom-bust effect) in the post-frontier (G3) municipalities.”
Quote in the paperSubstantial claimClassified as probably not a substantial claim.
InterpretationreasoningIf the 'boom and bust' hypothesis were true, it would imply that settlements would need to continually expand into previously uncleared regions in an ultimately futile effort to sustain economic progress.
“If the 'boom and bust' hypothesis were true, it would imply that settlements would need to continually expand into previously uncleared regions in an (ultimately futile) effort to sustain economic progress.”
Quote in the paperSubstantial claimProbably not a substantial claim: may not pass S2 (checkable). May combine two claims.
InterpretationreasoningIf human wellbeing can continue to improve even after a region has experienced significant settlement and land clearing, as the paper's analysis suggests, there is less pressure to open up new virgin forests and it should be easier to protect and preserve these ecologically valuable areas.
“if human wellbeing can continue to improve even after a region has experienced significant settlement and land clearing, as our analysis suggests, there is less pressure to open up new virgin forests and it should be easier to protect and preserve these ecologically valuable areas.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S4 (based). May combine two claims.
PremisereasoningBoom-bust theory predicts no boom-bust pattern in pre-frontier MCAs, perhaps a pattern in intermediate-stage MCAs, and an inverted-U effect most likely and most pronounced in post-frontier MCAs.
“Boom-bust theory would predict that we would not observe a boom-bust pattern in those MCAs that were pre-frontier in 2000, but perhaps in those that were in intermediate stages, and that an inverted-U effect would be most likely and most pronounced in the post-frontier MCAs”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S4 (based). May combine two claims.
PremisereasoningPost-frontier municipalities are the municipalities most likely to be experiencing the 'bust' phase and the regions most likely to display a boom-bust pattern, if one exists.
“These are the municipalities that are most likely to be experiencing the 'bust' phase”
- Also stated in: § 4.3. Time series analysis using merged INPE deforestation and UNDP HDI panel data · hedged
“These are the regions most likely to display a boom-bust pattern, if one exists.”
Quote in the paperNot a substantial claim- Also stated in: § 4.3. Time series analysis using merged INPE deforestation and UNDP HDI panel data · hedged
The authors state this as an assumption.
All municipalities in the Rodrigues et al. sample are following the same dynamic path, so post-frontier regions are good proxies for the future of pre-frontier areas and transition municipalities are good proxies for both the future of pre-frontier areas and the past of post-frontier regions.
“In other words, we need to assume that all municipalities in this sample are following the same dynamic path.”
The authors state this as an assumption.
If boom-bust patterns exist, at least some Amazonian areas that boomed in the early settlement years should have experienced a bust by 2000.
“However, as settlement has been progressing apace since the 1970's in the Amazon, at least some of those areas that originally boomed in the early years should have experienced their 'bust' by 2000 -in fact this is a key assumption of the previous cross sectional studies that found 'boom-bust' patterns.”
The authors state this as an assumption.
The INPE change-in-deforestation data can be matched sufficiently well to the main INPE data set.
“(1) that we have been able to match the INPE change-in-deforestation data sufficiently well to the main INPE data set”
The authors state this as an assumption.
The distribution of 1995 MCA deforestation derived from merging is strongly correlated with the actual distribution across MCAs of deforestation in 1991.
“(2) that the distribution of 1995 MCA deforestation deri ved from this merging is strongly correlated with the actual distribution across MCAs of deforestation in 1991”
The authors state this as an assumption.
Deforestation rates in the municipalities dropped due to merging difficulties were not significantly and systematically different from municipalities that were retained.
“that (c) deforestation rates in the municipalities that we dropped due to merging difficulties was not significantly and systematically different from municipalities that we retained.”
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The results obtained with socio-economic data at census sector level confirm the analysis of Weinhold et al. (2015) and Caviglia-Harris et al. (2016) at municipal level.
“The results we obtained with socio-economic data at census sector level thus confirm the analysis of Weinhold et al. (2015) and Caviglia-Harris et al. (2016) at municipal level.”
From Transition in environmental governance in the Brazilian Amazon: emergence of a new pattern of socio-economic development and deforestation (2016) · cites this paper as Weinhold et al., 2015
Weinhold et al. (2015) evidenced that pre-and post-frontier municipalities in 2000 have enjoyed an equal increase in their Human Development Index across the Amazon during the last decade.
“Weinhold et al. (2015) evidenced that pre-and post-frontier municipalities in 2000 have enjoyed an equal increase in their Human Development Index (HDI) across the Amazon during the last decade.”
From Transition in environmental governance in the Brazilian Amazon: emergence of a new pattern of socio-economic development and deforestation (2016) · cites this paper as Weinhold et al., 2015
Census sector data presents a finer spatial scale than the municipal data traditionally used in socio-economic studies.
“As IBGE raw data are produced for 37,295 census sectors covering the entire Amazon, whereas there are only 775 Amazonian municipalities, the census sector data presents a finer spatial scale than the municipal data traditionally used in socio-economic studies (e.g.Rodrigues et al., 2009, Celentano et al., 2012and Weinhold et al., 2015).”
From Transition in environmental governance in the Brazilian Amazon: emergence of a new pattern of socio-economic development and deforestation (2016) · cites this paper as Weinhold et al., 2015
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
Each contradiction between two passages listed here was confirmed by an independent check.
Conflicting counts of MCAs with 1991 data
MinorThe text repeatedly states that the 1991 sample contains 306 MCAs, but Table 2 lists 304. Table 5's total of 1,198 observations is also consistent with 304 in 1991 and 447 in each of 2000 and 2010, rather than 306 in 1991.
“our 1991 sample then reduces to N=306”
“| N1991=304 | N1991=42 | N1991=54 | N1991=86 | | | | |”
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- Authors
- Weinhold, D., Reis, E. J., & Vale, P. M.
- Affiliations
- London School of Economics and Political Science (GB)
- Institute of Applied Economic Research (BR)
- Ministry of Education (BR)
- Corresponding author
- Weinhold, Diana
- Venue
- Global Environmental Change
- Publisher
- Elsevier BV
- Published
- 2015-11
- Volume
- 35
- Pages
- 391-399
- ISSN
- 0959-3780 (ISSN-L)
- OpenAlex
- W2194229137
- Cited by
- 41
- References
- 18
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 4 · 2022: 1 · 2021: 2 · 2020: 4 · 2019: 19 · 2018: 1 · 2017: 4 · 2016: 3
- FWCI
- 2.18
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Global Environmental Change (publishedVersion)
- London School of Economics and Political Science Research Online (London School of Economics and Political Science) (submittedVersion)
- London School of Economics and Political Science Theses Online (London School of Economics and Political Science) (submittedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- LSE Research Online Documents on Economics (submittedVersion)
- Topics
- Physical Sciences › Environmental Science › Global and Planetary Change › Conservation, Biodiversity, and Resource Management
- Physical Sciences › Environmental Science › Global and Planetary Change › Land Use and Ecosystem Services
- Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Energy, Environment, Economic Growth
- Keywords
- deforestation, Human Development Index, Amazon basin, spatial autocorrelation, inverted U-shaped relationship, socio-economic development, Amazonas, Maranhão, panel data
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