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The Strange Case of Dr. Jekyll and Mr. Hyde
Open accessAbstract
First this paper indicates the fault common to the analysis given by three professors as to the Deposit-Refund System, and then provides a (much better?) alternative model for Deposit-Refund Theory. In their papers, all three professors have adopted two-stage construction. In the first stage the economic subject demands soft-drink cans following the utility-maximizing rule qua consumer (Jekyll), and then, in the second stage, he suddenly turns into entrepreneur (Hyde) and pursues his profit following the marginal cost-price rule, completely independent of the former behavior. (In Prof. Fujioka's paper, he firstt appears as Hyde. Then transformation into Jekyll!) Their analyses only place a utility-maximizing behavior and a profit-maximizing behavior in juxtaposition completely independent of each other. Such dissociation should not be overlooked. Alternatively a simple (and much better?) model of a unified Deposit-Refund Theory is proposed, which incorporates toil and trouble attendant on refunding into utility function as disutility, together with including the refunded money into the budget equation.
Overview
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Written from the paper’s full text.
TL;DR
This article criticizes earlier Deposit-Refund analyses by Shibata, Ueda, and Fujioka for splitting household behavior into a utility-maximizing consumer and a separate profit-maximizing recycler, and proposes a unified household model instead. The alternative model treats the effort of returning empty cans as a disutility inside the utility function and derives a modified marginal-utility condition.
Key findings
- The three prior analyses share a two-stage “Jekyll-Hyde” structure: first the household demands canned drinks according to utility maximization, then it switches to profit maximization for the refund decision, with the two stages treated as independent; the author argues this dissociation is theoretically unacceptable.
- In Fujioka’s model, profit maximization appears as a constraint, π* = max{θyr − C(yr)}, so π* is a fixed maximum value entering the budget equation; the author contends this still separates the refund decision from utility and that simultaneous maximization of utility and profit is logically impossible.
- The proposed alternative is max u = u(x, y, f(x2)) subject to x = x1 + x2 and I = (p + α)x1 + px2 + qy, where x1 is cans not refunded, x2 is cans refunded, and f(x2) captures the disutility of refunding effort; the Lagrangian yields a weighted marginal-utility equalization condition.
- Minor criticisms include that Shibata’s “bent supply curve PHA” and the demand-supply intersection at K are misleading because the marginal recovery cost curve PB is the supply of empty cans from the “Hyde” side, not the supply of canned drinks; the rationale for increasing marginal recovery cost is also questioned, and endpoint solutions are noted if that curve is flat or downward sloping.
Methods
- Theoretical and mathematical economics critique with model construction; no empirical data, sample, or estimation are used.
- The paper reviews and critiques prior works by Shibata and Shibata (1988), Ueda (1996), and Fujioka (1998), using their figures and models as the objects of analysis.
- It formulates a constrained utility-maximization problem, forms a Lagrangian, derives first-order conditions for subjective equilibrium, and suggests comparative statics such as a Slutsky-type equation as a possible extension.
Limitations
- The author states that his critique may rest on mistaken understanding and may contain mistaken criticisms, and he invites correction from the three professors and colleagues.
- The critique of Fujioka is explicitly limited to Model I; later parts of Fujioka’s analysis are left neutral and reserved for future examination.
- The proposed alternative model is described as very simple, and the author notes that other formulations of Deposit-Refund theory are possible; evident from the text, the paper offers no empirical testing or welfare calibration.
Model-written summary. Check it against the paper before relying on it.
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Claims the paper makes
23 Sources not found · 10 Own interpretation · 7 Own result · 3 No basis given
None of the sources cited for this claim could be matched to a paper in Crossref, so there is nothing to check it against.
In the paper
“Their analyses only place a utility-maximizing behavior and a profit-maximizing behavior in juxtaposition completely independent of each other.”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites [2]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- Not matched
A result the paper states — it cites no source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“す な わ ちDeposit-Refundシ ス テ ム の も と で の 稍 々 拡 張 さ れ た 加 重 限 界 効 用 均 等 の 法 則 で あ る 。”
plainstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
In the paper
“ハ イ ド と し て の 利 潤 極 大 化 とい う企 業 の論 理 は効 用 極 大 化 の制 約 条 件 の な か に入 れ られ た か た ち で 厳 存 して い るの で あ る。”
What the sources say
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
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In the paper
“リ フ ァ ン ドの 問 題 は消 費 者(家 計)の 意 識 に は毫 末 も上 る こ とな い の で あ る。”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
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- Based: passes — The paper gives a reason why it holds.
- Not matched
A result the paper states — it cites no source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“ま た これ ら と, 2つ の制 約 条 件 と に よ っ てDeposit-Refundシ ス テ ム の も とで の 主 体 的 均 衡 が き ま る こ と も明 らか で あ る。”
boostedstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A result the paper states — it cites no source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Alternatively a simple (and much better?)model of a unified Deposit -Refund Theory is proposed, which incorporates toil and trouble attendant on refunding into utility function as disutility, together with including the refunded money into the budget equation.”
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
None of the sources cited for this claim could be matched to a paper in Crossref, so there is nothing to check it against.
In the paper
“In their papers, all three professors have adopted two stage construction.”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites [2]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- Not matched
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Deposit-Refundの 基 本 分 析 は効 用 分 析(非 効 用 分 析 を含 め て)ぬ き に は成 立 し得 な い。”
plainstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“全 く一 同 じ効 用 を与 え る,そ の意 味 で 全 く同 じ ジ ュ ー ス の か ん を,よ り安 くpで 手 に す る た め に は,リ フ ァ ン ドに 随 伴 す る 労 す な わ ち非 効 用(disutility)を 甘 受 せ ね ば な ら な い 。”
plainstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- It may state two separate claims as one. 10
- Probably not a substantial claim. 31
A result the paper states — it cites no source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“第3辺 は リ フ ァ ン ドの チ ャ ネ ル に よ っ て(u2<0),限 界 効 用 の 大 き さ も ,第1辺 と比 べ て 小 と な っ て お り,同 時 に 分 母 も α だ け 小 と な っ て い る 。”
plainstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“第2段 の利 潤 極 大 化 の行 動 の帰 結 とし てハ イ ドが 手 に す る リフ ァ ン ドの金 額 は,そ の ま まハ イ ドの ふ と こ ろ に残 る だ け で あ っ て,そ れ は ジ ュー ス の か ん の 購 入 に は全 く影 響 す る こ とな い 論 理 構 造 とな っ て い る。”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
- Not matched
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“モ デ ル が 非 斉 合 的 で あ っ て は大 こ ま りで,藤 岡教 授 か ら,斉 合 的 とい うお 墨 つ き を頂 だ い して も うれ し く も何 と も な い 。”
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: fails — The paper may give no reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
None of the sources cited for this claim could be matched to a paper in Crossref, so there is nothing to check it against.
In the paper
“In the first stage the economic subject demands soft-drink cans following the utility-maximizing rule qua consumer (Jekyll), and then, in the second stage, he suddenly turns into entrepreneur (Hyde) and pursues his profit following the marginal cost-price rule, completely independent of the former behavior.”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites [2]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Not matched
None of the sources cited for this claim could be matched to a paper in Crossref, so there is nothing to check it against.
In the paper
“藤 岡教 授 の仕 事[3]は 柴 田教 授 の それ[1]をbaseに し て,そ れ を発 展 させ よ う との意 図 の も と に執 筆 され て い る。”
What the sources say
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plainstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
- Not matched
In the paper
“そ の う ち の 最 大 の も の を π*と 表 す と い う の が(3)の 意 味 す る と こ ろ で あ る 。 π*は 関 数 で は な く,関 数 の と る ひ と つ の 定 ま っ た 値 で あ る 。”
What the sources say
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
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- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
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In the paper
“か くして 彼 は,リ フ ァ ン ドの 問題 とは全 く独 立 に ジ ュ ー ス の か ん の購 入 量 を決 定 す る。”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
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- Load-bearing: fails — The paper’s conclusions may not depend on it.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
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In the paper
“今 や 彼 は ジ キ ル(家 計)か らハ イ ド(企 業)に 変 身 し て し ま う。”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plainstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
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A result the paper states — it cites no source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“わ た くしの モ デル は近 代 経 済 学 の オ ー ソ ドッ ク ス な手 法 に の っ と りなが ら,事 態 の 本 質 を素 直 に定 式 化 し た もの にす ぎず”
plain- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
A result the paper states — it cites no source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“最 後 にf()は,リ フ ァ ン ド に 空 き か ん を 提 出 す る の に と も な うtoil and troubleを 表 す 非 効 用 関 数 で あ る 。”
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim.
In the paper
“教 授 の 論 理 の根 本 的 な難 点 は,こ の二 つ の 図 に表 現 さ れ る,第1段 の,ど れ だ け の ジ ュー ス(の か ん)が 需 要 され るか の議 論 と,第2段 の,こ の ジ ュ ー ス の 空 き か ん の ど れ だ けが リ フ ァ ン ドに供 さ れ るか の議 論 とが 全 くば らば ら,完 全 に分 裂 症 的 症 状 を 呈 して い る 点 で あ る。”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
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- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
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In the paper
“利 潤 極 大 とい う表 現 が 始 め て イ クス プ リシ ッ ト に 出現 す るの は藤 岡 教 授 の ペ ー パ ァ[3]に お い)てで あ る”
What the sources say
- Not matchedcites [3]
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plain- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
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In the paper
“先 行 両 教 授 の ジ キ ル= ハ イ ド理 論 の ま ず い と ころ を そ の ま ま継 承 し て し まっ て い る 。”
What the sources say
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plainstates a cause- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim.
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In the paper
“藤 岡 教 授 の モ デル は 家 計 の効 用 極 大 の 行 動 と し て統 一 的 に定 式 化 され て い るか の ご と くで あ るが,事 実 は全 く異 な る 。”
What the sources say
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Not matched
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“素 直 に考 えれ ば経 済 学 部1年 の 大 学 生 で も こ う定 式 化 す るの で あ ろ う し”
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: fails — It may be too vague to check against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: fails — The paper may give no reason why it holds.
Probably not a substantial claim. It may be too vague to check against evidence. The paper’s conclusions may not depend on it. The paper may give no reason why it holds. It may state two separate claims as one.
In the paper
“非 効 用 関 数 の措 定 を しな い で ,ハ イ ドに変 身 し,全 く誤 っ た仕 方 で 費 用 関 数,利 潤 関 数 を持 ち 出 した の で あ る。”
What the sources say
- Not matchedcites [3]
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plainstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
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- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
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In the paper
“な お こ こで の藤 岡 教 授 批 判 は教 授 の モ デ ルIに 対 す る そ れ に 限 っ て い る。”
What the sources say
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
- Not matched
A result the paper states — it cites no source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“そ れ は極 め て シ ンプ ル で あ るが,そ れ に も拘 らず 家 計(消 費 者)の 経 済 行 動 の統 一性 が き ち ん と保 た れ て い る(と 思 う)。”
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: fails — It may be too vague to check against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may be too vague to check against evidence. It may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“二 つ の 目的 関 数 の 同時 最 大 化 とい う こ とは論 理 的 に不 可 能 で あ る。”
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: fails — The paper may give no reason why it holds.
Probably not a substantial claim. The paper may give no reason why it holds.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“x1, x2と も に減 少 す る とい う こ と も無 論 あ り得 る。”
plainstates an association- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: fails — The paper may give no reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
In the paper
“少 し く経 済 学 を勉 強 した ひ とな らば,こ れ が,利 潤極 大 の生 産 量 を決 定 す る条 件 と し て の価 格 と 限 界 費 用 との 均 衡 を意 味 して い る こ と は直 ち に 了解 す る と こ ろで あ ろ う。”
What the sources say
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
boostedstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim.
- Not matched
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“ジ ュ ー ス の購 入 量,空 きか ん の リフ ァ ン ド量 の決 定 につ い て は,効 用 関 数,非 効 用 関 数 に究 極 的 に は依 存 し な い わ け に は行 く筈 が な い で あ ろ う。”
boostedstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“二 つ の 目的 関数 を同 時 に 最 大(最 小 の 場 合 も,一 方 最 大,一 方 最 小 の 場 合 も全 く同 じで あ る)に す る とい う こ とは ア プ リオ リに不 可 能 で あ る”
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: fails — The paper may give no reason why it holds.
Probably not a substantial claim. The paper may give no reason why it holds.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“yが 存 在 す るの で ,補 完 関 係 の存 在 は論 理 的 に は 可 能 で あ る。”
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“x1とx2と は 間 違 い)なく代 替 財 で あ ろ うが”
boostedstates an association- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: fails — The paper may give no reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
In the paper
“マ イ ナ ァな が ら許 され な い の は,柴 田教 授[1] 135ペ ー ジの 「 飲 料 の 供 給 曲 線 は屈 折 した 曲線PHAと な る」とい う叙 述 で あ る”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
- Checkable: fails — It may be too vague to check against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may be too vague to check against evidence. The paper’s conclusions may not depend on it.
- Not matched
None of the sources cited for this claim could be matched to a paper in Crossref, so there is nothing to check it against.
In the paper
“は じ めが ジ キ ル で あ ろ うが,は じめ が ハ イ ドで あ ろ うが,変 身 の事 実 に か わ りは な く,ど ち らの ジ キ ル=ハ イ ド理 論 も無 差 別,同 罪 で あ る。”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites [2]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may state two separate claims as one.
- Not matched
In the paper
“次 の 「 缶 入 り飲 料 の 需 要 曲 線DD´が 供 給 曲線PHAと 点Kで 交 わ る とい う叙 述 も有 意 に(significantly)誤 解 惹 起 的 で あ る。”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
boosted- Asserted: passes — The authors put it forward as true.
- Checkable: fails — It may be too vague to check against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may be too vague to check against evidence. The paper’s conclusions may not depend on it.
- Not matched
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Such dissociation should not be overlooked.”
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim.
In the paper
“この救 い難 い分 裂 症 的 理 論 構 造 は到 底 ゆ る し得 な い と言 わ ね ぼ な らぬ で あ ろ う。”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
boosted- Asserted: passes — The authors put it forward as true.
- Checkable: fails — It may be too vague to check against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may be too vague to check against evidence. The paper’s conclusions may not depend on it.
- Not matched
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“下 級 財 は当 然 存 在 し得 る。”
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: fails — The paper may give no reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
In the paper
“Deposit-Refundシ ス テ ム は,リ フ ァ ン ドをせ ね ばp+α の デ ポ ジ ッ トこみ の 価 格 で ジ ュ ー ス の か ん を手 にす るが,リ フ ァ ン ドの労 を とる な ら ば よ り安 くpの 価 格 で 手 に す る こ とが で き る シス テ ム で あ る。”
What the sources say
- Not matchedcites [1]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plainstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim.
- Not matched
In the paper
“藤 岡 教 授 に して も ,効 用 を前 提 せ ず し て ジ ュ ー ス 入 りの か ん に と対 す る需 要 曲線 は描 く こ と能 わ な い。”
What the sources say
- Not matchedcites [3]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plainstates a cause- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
- Not matched
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“経 済 的 宇 宙 を二 分 し て これ を構 成 す る二 つ の 経 済 主 体,家 計,企 業 を想 定 し,前 者 の 行 動 原 理 を効 用 極 大,後 者 の そ れ を利 潤 極 大 と して 両 者 を峻 別 す る の は レオ ン ・ワル ラ ス以 来 近 代 経 済 学 の 伝 統 的 な 基 本 前 提 で は な か った か 。”
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: fails — The paper may give no reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
Citations
Cited by
Sorted by citations
Topoisomerase Poisons: Harnessing the Dark Side of Enzyme Mechanism
Froelich-Ammon, S. J., & Osheroff, N. (1995) · Journal of Biological Chemistry · doi:10.1074/jbc.270.37.21429 · Cited by 504
The excited state antiaromatic benzene ring: a molecular Mr Hyde?
Papadakis, R., & Ottosson, H. (2015) · Chemical Society Reviews · doi:10.1039/c5cs00057b · Cited by 166
Channel-forming toxins: tales of transformation
Gouaux, E. (1997) · Current Opinion in Structural Biology · doi:10.1016/s0959-440x(97)80123-6 · Cited by 166
Theories of the Male Mid-Life Crisis
Brim, O. G. (1976) · The Counseling Psychologist · doi:10.1177/001100007600600102 · Cited by 128
Roelofs, L. (2019) · Oxford University Press eBooks · doi:10.1093/oso/9780190859053.001.0001 · Cited by 100
Metadata
- Authors
- OISHI, Y.
- Affiliations
- The University of Tokyo (JP)
- Corresponding author
- OISHI, Yasuhiko
- Venue
- Studies in Regional Science
- Published
- 2001
- Volume
- 32
- Issue
- 1
- Pages
- 139-154
- ISSN
- 0287-6256 (ISSN-L)
- 1880-6465
- OpenAlex
- W4236930795
- Cited by
- 134
- References
- 0
- Citations by year
- 2024: 6 · 2023: 19 · 2022: 4 · 2021: 4 · 2020: 6 · 2019: 19 · 2018: 4 · 2017: 5 · 2016: 5 · 2015: 9 · 2014: 2 · 2013: 4 · 2012: 6
- FWCI
- 0.89
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Studies in Regional Science (publishedVersion)
- Topics
- Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Merger and Competition Analysis
- Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Economic Theory and Institutions
- Physical Sciences › Environmental Science › Waste Management and Disposal › Municipal Solid Waste Management
- Keywords
- deposit-refund systems, recycling, consumer behavior, profit maximization, utility maximization, two-stage model, waste management
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
A language model drew the claims from the paper on 2026-09-28, under version 3 of the claim definition (prompt extract-v3).
A second model labelled each claim on 2026-09-28 (model jev-1.13-20260917, definition revision gold-guideline-v0.2).
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: The Strange Case of Dr. Jekyll and Mr. Hyde. https://app.cochat.ai/papers/10.2457/srs.32.139
- The paper
- OISHI, Y. (2001). The Strange Case of Dr. Jekyll and Mr. Hyde. Studies in Regional Science. https://doi.org/10.2457/srs.32.139
