Contract Design with Costly Convex Self-Control

Daisuke Nakajima; Emre Ozdenoren; Yusufcan Masatlioglu

arxiv: 1907.07628 · v1 · pith:OACYSAPHnew · submitted 2019-07-17 · 💰 econ.TH

Contract Design with Costly Convex Self-Control

Yusufcan Masatlioglu , Daisuke Nakajima , Emre Ozdenoren This is my paper

Pith reviewed 2026-05-24 19:45 UTC · model grok-4.3

classification 💰 econ.TH

keywords contract designmonopoly pricingself-control preferencesnaive consumersconvex costs

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The pith

A monopolist designs contracts to exploit naive consumers who have convex self-control preferences.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper sets up the pricing problem faced by a profit-maximizing monopolist when consumers have convex self-control preferences but remain naive about those preferences. The monopolist can therefore design contracts that take advantage of the mismatch between anticipated and actual self-control costs. A sympathetic reader would care because this setup shows how self-control frictions alter the standard monopoly problem and change the contracts that emerge in equilibrium.

Core claim

We consider the pricing problem of a profit-maximizing monopolist who faces naive consumers with convex self-control preferences.

What carries the argument

Convex self-control preferences of naive consumers, which the monopolist exploits when designing the optimal contract.

Load-bearing premise

Consumers are naive about their convex self-control preferences.

What would settle it

An experiment or field observation in which consumers correctly anticipate their own self-control costs and choose contracts accordingly would show that the exploitation channel disappears.

read the original abstract

In this note, we consider the pricing problem of a profit-maximizing monopolist who faces naive consumers with convex self-control preferences.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Desk Editor's Note private letter to a colleague

This note sets up a monopoly pricing problem with naive consumers who have convex self-control preferences but shows no derivations, results, or closed forms.

read the letter

This note sets up a monopoly pricing problem with naive consumers who have convex self-control preferences but shows no derivations, results, or closed forms. The abstract is literally just the setup statement with nothing else attached. What the paper does is take an existing preference structure and place it in a standard contract design setting for a profit-maximizing monopolist. The convexity and the naivete are the two elements highlighted, so if the full version actually derives the optimal contract or shows how convexity changes exploitation compared with linear self-control, that would be a small incremental step in behavioral contract theory. The paper does well in keeping the framing narrow and focused on one specific preference class rather than trying to cover everything at once. The soft spots are clear and central. No equations, no proofs, and no comparative statics appear in the provided text, which makes it impossible to check whether the logic holds or whether the results reduce to earlier work on self-control in IO. The naivete assumption is doing a lot of work, but without seeing how it is modeled or what it produces, there is no way to tell if the argument is sound or if it introduces any new tension. This is aimed at a narrow slice of researchers already working on behavioral contract theory and self-control costs. Most readers outside that group will not find enough substance to engage with. I would not bring it to a reading group, would not cite it, and would not send it for peer review in this form because there is not enough visible content to justify referee effort.

Referee Report

0 major / 0 minor

Summary. The manuscript is a short note that states it considers the pricing problem of a profit-maximizing monopolist who faces naive consumers with convex self-control preferences, without presenting any model, derivations, theorems, or results.

Significance. No result is presented whose significance can be assessed. The setup touches on behavioral contract theory, but absent any equilibrium characterization, comparative statics, or welfare analysis, there is no contribution to evaluate.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for their comments on our note. We acknowledge that the submitted version is extremely concise and does not contain the full model, derivations, or results that would normally be expected in a complete paper. We will revise the manuscript accordingly.

read point-by-point responses

Referee: The manuscript is a short note that states it considers the pricing problem of a profit-maximizing monopolist who faces naive consumers with convex self-control preferences, without presenting any model, derivations, theorems, or results.

Authors: We agree with this assessment. The current draft is limited to a single sentence and does not include the model setup, equilibrium analysis, or any formal results. This was an oversight in the submission; the note was intended as a preliminary outline but was submitted without the necessary expansions. revision: yes
Referee: No result is presented whose significance can be assessed. The setup touches on behavioral contract theory, but absent any equilibrium characterization, comparative statics, or welfare analysis, there is no contribution to evaluate.

Authors: We agree that without the model, derivations, or results, no contribution can be evaluated. The revised version will include the full analysis of the monopolist's pricing problem under the stated consumer preferences, including equilibrium characterization where applicable. revision: yes

Circularity Check

0 steps flagged

No derivation chain or equations present; abstract states setup only

full rationale

The provided abstract and note framing contain no equations, theorems, predictions, or derivation steps. The paper simply states that it considers a pricing problem for a monopolist facing naive consumers with convex self-control preferences. Absent any claimed result, fitted parameter, self-citation chain, or ansatz, there are no load-bearing steps that could reduce to inputs by construction. This is the normal case of a paper whose central content is definitional setup rather than a derived claim.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

Abstract-only review yields no identifiable free parameters, axioms, or invented entities; cannot audit the modeling assumptions or ledger entries.

pith-pipeline@v0.9.0 · 5531 in / 836 out tokens · 19949 ms · 2026-05-24T19:45:01.012449+00:00 · methodology

Contract Design with Costly Convex Self-Control

Core claim

What carries the argument

Load-bearing premise

What would settle it

discussion (0)