Keeping up by robbing the Joneses

In this article, we find evidence of a ‘keeping up with the Joneses’ effect in the relationship between inequality and crime in Italy. We use data on minor and major crimes in the 20 Italian regions in the years 2004–2015 and show that for higher (lower) income levels, inequality leads individuals to commit major (minor) crimes to try to keep up with richer people.     

CRIMES BY YOUTH: DETERRENCE AND MORAL COMPLIANCE WITH THE LAW

We use a decision theory framework to evaluate the extent to which crimes by youth are explained by the "economic model of crime." We expand the model from the usual formulation including deterrence effects to investigate the impact of earned income and income supplements on individuals' crime participation. Additionally, we evaluate variables representing the forces of moral compliance and family attitudes. We find that moral compliance has a moderating effect on the decision to commit crimes, even by persistently criminal individuals.     

Heterogeneity,social esteem and feasibility of collective action

In the presence of individual heterogeneity, a major problem with egalitarian partnership, such as complete income pooling, is that individuals of comparatively high ability are induced to exit the arrangement. This is nevertheless ignoring the possible impact of social esteem considerations based on a comparison of members' performances. In this paper, drawing inspiration from pooling experiences in a Japanese fishery, we show that the exit problem can be surmounted if sensitivity to social esteem is neither too strong nor too weak. If it is too strong, the lower ability agents will exit out of social shame whereas, if it is too weak, the higher ability agents will not consider it worthwhile to transfer income to their partners. When the arrangement is sustainable, the lower ability people strive towards limiting the income gap.     

Entry deterrence through credit denial

Firms in oligopoly can use debt to commit to a strategic position that negatively affects rival firms and improves profitability. In this paper, I show that an incumbent firm can deter entry by using debt to commit to such a low price that an entrant's lender will not finance entry, even if the entrant's expected profit from entry is positive. Empirical evidence shows that concentration and debt are positively related in several industries, indicating that debt may be used to reduce competition.     

Voting over type and generosity of a pension system when some individuals are myopic

This paper studies the determination through majority voting of a pension scheme when society consists of far-sighted and myopic individuals. All individuals have the same basic preferences but myopics tend to adopt a short-term view (instant gratification) when dealing with retirement saving and labor supply. Consequently, they will find themselves with low consumption after retirement and regret their insufficient savings decisions. Henceforth, when voting they tend to commit themselves into forced saving. We consider a pension scheme that is characterized by two parameters: the payroll tax rate (that determines the size or generosity of the system) and the “Bismarckian factor” that determines its redistributiveness. Individuals vote sequentially. We examine how the introduction of myopic agents affects the generosity and the redistributiveness of the pension system. Our main result is that a flat pension system is always chosen when all individuals are of one kind (all far-sighted or all myopic), while a less redistributive system may be chosen if society is composed of both myopic and far-sighted agents. Furthermore, while myopic individuals tend to prefer larger payroll taxes than their far-sighted counterparts, the generosity of the system does not always increase with the proportion of myopics.     

Income based price subsidies and parallel imports

We present a policy game where a Rich country has a higher ability than a Poor country to commit to certain elements of health policy such as providing income related price subsidies and allowing parallel imports (PI). When allowing PI is not a choice for the Poor country, the Rich country allows PI and both countries provide a subsidy to their poorer buyers as the subgame perfect equilibrium policies. However, when the Poor is able to PI a different equilibrium may arise. We show that the ability of the Poor to allow PI might increase welfare in this country even if it is never implemented. We also prove that as the Poor country gets richer, it will not be in their best interest to sign an agreement with the Rich to commit to not allowing PI.     

Income based price subsidies and parallel imports

We present a policy game where a Rich country has a higher ability than a Poor country to commit to certain elements of health policy such as providing income related price subsidies and allowing parallel imports (PI). When allowing PI is not a choice for the Poor country, the Rich country allows PI and both countries provide a subsidy to their poorer buyers as the subgame perfect equilibrium policies. However, when the Poor is able to PI a different equilibrium may arise. We show that the ability of the Poor to allow PI might increase welfare in this country even if it is never implemented. We also prove that as the Poor country gets richer, it will not be in their best interest to sign an agreement with the Rich to commit to not allowing PI.     

Behavioural Economics,Hyperbolic Discounting and Environmental Policy

This paper reviews some recent research in “behavioural economics” with an application to environmental issues. Empirical results from behavioural economics provide a reminder that human behaviour is context-dependent, implying that policy may go awry if based upon models of behaviour which are inappropriate to the contexts in which decisions are made. Recognizing that agents may, in some contexts, systematically make mistakes raises challenging questions about the role of “paternalism” in government policy. The paper considers the research into hyperbolic discounting, and examines the implications for environmental policy. We develop a model of resource management under hyperbolic discounting, which shows that if a planner is unable to commit to a policy, the temptation to re-evaluate the policy in future could lead to an inadvertent collapse in the stocks of a natural resource.     

EMPLOYMENT,DETERRENCE, AND CRIME IN A DYNAMIC MODEL*

Using maximum likelihood techniques and monthly panel data we solve and estimate an explicitly dynamic model of criminal behavior where current criminal activity impacts future labor market outcomes. We show that the threat of future adverse effects in the labor market when arrested acts as a strong deterrent to crime. Moreover, such forward‐looking behavior is estimated to be important. Hence, policies that weaken this deterrence will be much less effective in fighting crime. This suggests that prevention is more powerful than redemption since anticipated redemption allows criminals to look forward to negating the consequences of their crimes.     

Unforeseen Contingencies and Incomplete Contracts

We scrutinize the conceptual framework commonly used in the incomplete contract literature. This literature usually assumes that contractual incompleteness is due to the transaction costs of describing—or of even foreseeing—the possible states of nature in advance. We argue, however, that such transaction costs need not interfere with optimal contracting ( i.e. transaction costs need not be relevant ), provided that agents can probabilistically forecast their possible future payoffs (even if other aspects of the state of the nature cannot be forecast). In other words, all that is required for optimality is that agents be able to perform dynamic programming, an assumption always invoked by the incomplete contract literature. The foregoing optimality result holds very generally provided that parties can commit themselves not to renegotiate. Moreover, we point out that renegotiation may be hard to reconcile with a framework that otherwise presumes perfect rationality. However, even if renegotiation is allowed, the result still remains valid provided that parties are risk averse.     

Credibility and endogenous societal discounting

We consider a dynamic moral hazard economy inhabited by a planner and a population of privately informed agents. We assume that the planner and the agents share the same discount factor, but that the planner cannot commit. We show that optimal allocations in such settings solve the problems of committed planners who discount the future less heavily than agents. Thus, we provide micro-foundations for dynamic moral hazard models that assume a societal discount factor in excess of the private one. We extend the analysis to allocations that are reconsideration-proof in the sense of Kocherlakota [Kocherlakota, N., 1996. Reconsideration-proofness: A refinement for infinite horizon time inconsistency. Games and Economic Behavior 15, 33–54]. We show that these allocations solve the choice problem of a committed planner with a unit discount factor.     

Uncertainty, Commitment, and Optimal Taxation

This paper examines the optimal tax design problem in the presence of wage uncertainty. The wage has a continuous distribution, individuals are ex ante identical, preferences are separable in labor supply and goods, public policy aims at providing the population with social insurance, and the only restriction on the tax instruments is that emanating from lack of public observability of realized wages and labor supplies. We show that optimal tax structures depend crucially on whether it is labor supply or goods that consumers have to commit to before the resolution of uncertainty. Specifically, we prove that, in the absence of commitment, the social insurance problem collapses to the traditional optimal tax problem. Second, if labor supply is precommitted, it would be possible to effect a first-best outcome. Third, commitment to goods would make indirect taxation a useful instrument of tax policy even in the presence of a general income tax; it requires differential tax treatment of committed and noncommitted goods. Finally, if preferences are separable between the two types of goods, precommitted goods must be taxed at a uniform rate lower than that on the noncommitted goods.     

Tariffs,Quotas, and Forward Contracts under Asymmetric Information*

We consider optimal trade policy for a large country with private information. We show that the optimal tariff leads to a signaling equilibrium with higher tariffs and lower welfare than under complete information, whereas the optimal import quota replicates the complete information equilibrium and thus is superior to the tariff. We also show that, with the tariff, the country may be better off being uninformed. Finally, we show that if the importing nation cannot commit to its tariff, the use of futures contracts together with the dynamically consistent tariff leads to the same equilibrium as under complete information with commitment.     

Optimal Nonlinear Income Taxation with Habit Formation

It has recently been shown that incorporating “keeping up with the Joneses” preferences into a prototypical two‐ability‐type optimal nonlinear income tax model leads to higher marginal tax rates for both types of agents. In particular, the high‐skill type faces a positive marginal tax rate, rather than zero as in the conventional case. In this paper, agents’ utility functions are postulated to exhibit “habit formation in consumption” such that the prototypical two‐ability‐type optimal nonlinear income tax model becomes a dynamic analytical framework. We show that if the government can commit to its future fiscal policy, the presence of consumption habits does not affect the standard results on optimal marginal tax rates. By contrast, if the government cannot precommit, the high‐skill type will face a negative marginal tax rate, while the low‐skill type’s marginal tax rate remains positive.     

A simple model of homophily in social networks

Biases in meeting opportunities have been recently shown to play a key role for the emergence of homophily in social networks (see Currarini et al., 2009). The aim of this paper is to provide a simple microfoundation of these biases in a model where the size and type-composition of the meeting pools are shaped by agents׳ socialization decisions. In particular, agents either inbreed (direct search only to similar types) or outbreed (direct search to population at large). When outbreeding is costly, this is shown to induce stark equilibrium behavior of a threshold type: agents “inbreed” (i.e. mostly meet their own type) if, and only if, their group is above certain size. We show that this threshold equilibrium generates patterns of in-group and cross-group ties that are consistent with empirical evidence of homophily in two paradigmatic instances: high school friendships and interethnic marriages.     

Population aging,the costs of health care for the elderly and growth

Employing an overlapping-generations model with endogenous growth in which altruistic young agents take care of the health level of their aged parents at risk of illness, this paper examines how population aging influences the long-run growth rate of the economy. We show that life expectancy, when relatively low (high), positively (negatively) affects economic growth. This paper also investigates public policy on long-term care and demonstrates the existence of an intergenerational conflict between current and future generations. We also point out that population aging may mitigate the extent of this conflict.     

The Paradox of Power: Principal-agent problems and administrative capacity in Imperial China (and other absolutist regimes)

Tax extraction is often low in absolutist regimes. Why are absolutists unable to convert power into revenue? Supported by evidence from Imperial China, we explain this puzzle with a principal-agent model which reveals that absolutists, unconstrained by rule of law and unable to commit to not predating on their tax-collecting agents (and the masses), may find it optimal to settle for a low wage-low tax equilibrium, while permitting agents to keep extra, unmonitored taxes. Our analysis suggests that low investment in administrative capacity is a conscious choice for an absolutist since it substitutes for credible commitment to refrain from confiscation from its agents.     

TRUST,VALUES, AND FALSE CONSENSUS

Individuals’ beliefs about the trustworthiness of a generic member of the population are both heterogeneous across individuals and persistent across generations. We investigate one mechanism yielding these dual patterns: false consensus. In the context of a trust game experiment, we show that the relationship between behavior and beliefs is consistent with individuals extrapolating their trust beliefs from their own trustworthiness and that this tendency continues even after substantial learning opportunities. We go on to provide evidence suggesting that one's own trustworthiness can be traced back to the values parents transmit to their children during their upbringing.     

The rise of obesity in Europe: an economic perspective

Obesity in Europe is rising. This paper investigates the economic rationales for public intervention to control obesity. We present new empirical evidence showing that family background is related to obesity among young European adults. This evidence provides a strong basis for intervention on equity grounds, particularly targeted towards children. The case for intervention on efficiency grounds is less clear-cut and in most cases the evidence is relatively weak. We find insufficient evidence that information deficiencies are important, as the majority of Europeans appear to be aware of the bad consequences of obesity on health. We also find that the potential health insurance externality -- non-obese effectively subsidizing obese individuals -- is small. In support of policy intervention, we show that there are product and labour market imperfections. Obese employees earn less than the non-obese. We also find that there is a remarkably high proportion of individuals with self-control problems, who fail to stick to their self-declared weight-related plans. Regulations that affect fast food advertisements and the location and access to fast food vending machines and establishments may help these individuals in controlling their weight.
--- Giorgio Brunello, Pierre-Carl Michaud and Anna Sanz-de-Galdeano     

Optimal price‐level drift under commitment in the canonical New Keynesian model

Abstract In both the canonical and many extended versions of the New Keynesian model, optimal monetary policy under commitment implies price‐level stationarity as long as expectations are rational. We show that this is no longer the case if the central bank and private agents make decisions before observing current shocks. The optimal amount of price‐level drift in response to unexpected innovations to inflation is quantitatively important. This result has important implications for monetary policy, including the design of the optimal loss function for the central bank if it cannot commit to its future policies.