Assessing the impact of taxes on female labor supply using a finite mixture approach

This paper expands the standard analysis of female labor supply to permit preference heterogeneity by using a finite mixture model. Using the extended model, we obtain theory consistent results whereas a traditional model produces a negative substitution effect. We use our model to illustrate the labor supply effects of a tax reform, corresponding to 1983–1992 changes in the Swedish income-tax schedule. The results shows an expected reduction in tax revenues of about 17%. Finally, we use Monte Carlo simulations and show that our proposed mixture model is robust towards different misspecifications. First version received: March 1998/final version accepted: October 1999     

Growth and income inequality: a canonical model

Summary. We develop an endogenous growth model with elastic labor supply, in which agents differ in their initial endowments of physical capital. In this framework, the growth rate and the distribution of income are jointly determined. The key equilibrating variable is the equilibrium labor supply. It determines the rate of return to capital, which in turn affects both the rate of capital accumulation and the distribution of income across agents. We then examine the impact of various structural shocks on growth and distribution. We find that faster growth is associated with a more unequal, contemporaneous distribution of income, consistent with recent empirical findings.Received: 7 October 2004, Revised: 18 February 2005, JEL Classification Numbers: O17, O40.Cecilia García-Peñalosa: Correspondence toGarcía-Peñalosa would like to acknowledge the financial support received from the Institut d’Economie Publique (IDEP), Marseille. Turnovsky’s research was supported in part by the Castor endowment at the University of Washington. The paper has benefited from seminar presentations at the University of California, Riverside, and the University of Kansas, as well as from the comments of an anonymous referee.     

Endogenous time preference and optimal growth

We adapt the classic one-sector optimal growth model to include an endogenous rate of time preference along the lines of Becker and Mulligan (1997). The resulting model is both time-consistent and analytically tractable. Capital sequences are shown to be globally monotone and stable under very general circumstances using lattice programming techniques and value orders. We analyze a series of examples that exhibit a variety of behaviors, including closed-form solutions, unique steady-states, multiple steady-states, and conditionally sustained growth. The endogenous rate of discount preserves monotonicity and stability while allowing for the possibility of non-global convergence.I would like to thank Robert Becker, Leonard Mirman, Michael Kaganovich, Itzhak Zilcha, and an anonymous referee for helpful comments and discussions.     

Empirical evidence on interdependent preferences: nature or nurture?

This paper discusses empirical evidence for interdependent preferencesfrom the point of view of the neurosciences, of heritabilitystudies, and of cross-cultural and developmental psychology:it shows how interdependent preferences are determined to asignificant degree by environmental factors. This result hasmeaningful implications for economic theory, policy and experimentation.A theory of interdependent preferences should also be a theoryof their endogenous determination. Normative analyses ignorethe endogeneity of interdependent preferences at their own peril.Caution is required in experimental analyses attempting to measurethe distribution of interdependent preferences in the population.     

On local indeterminacy and endogenous cycles in Ramsey models with heterogeneous households

It is well-known that endogenous cycles can occur in Ramsey models with heterogeneous households and borrowing constraints. In this note, we address the issue of robustness in the more general case of endogenous labor supply and we explain the occurrence of local indeterminacy under progressive taxation.

Differences in Work Hours and Hours Preferences by Race in the U.S.

Significant differences exist in actual and preferred work hours by race. Specifically, black males work 20 percent fewer annual hours than white males. The differences between black and white women are small. Black workers are significantly more likely than white workers to prefer additional work and fewer are satisfied with their current hours of work. I use the hours-inequality hypothesis of Bell and Freeman (1995,1997) to evaluate the extent to which race differences in work hours and hours preferences are related to race differences in incentives. I demonstrate that whereas white workers work longer hours in response to overall wage variation in their relevant labor market cell, black workers react to the wage variation among black workers but not to the variation overall. The fact that labor market incentives are different for otherwise similar black and white workers is difficult to reconcile with standard competitive theory.     

Consumption externality, efficiency and optimal taxation in one-sector growth model

In an economy with consumption externalities, existing studies find that a competitive equilibrium is efficient in the long run and remains efficient in transitions if preferences are homothetic. This paper revisits the efficiency issue in an otherwise standard one-sector growth model where consumption externalities affect a utility via their effects on the time preference. We find that even if preferences are homothetic, the externality changes the marginal rate of substitution between now and future and leads to a disparity in the intertemporal elasticity of substitution between the centrally planned economy and a decentralized economy. As a result, a competitive equilibrium is inefficient in transition dynamics. We characterize an optimal tax/subsidy structure that enables the allocation in a decentralized economy to replicate the social optimum.     

Indeterminate Balanced Growth under Habit Persistence and Fiscal Policies

This paper studies a dynamic general equilibrium model with habit persistence in preferences and fiscal policies of taxation and expenditures. Preference takes a subtractive form of habits (the marginal rate of substitution between the agent's own consumption and habit stocks is constant), and technology is linear in aggregate capital (the economy grows without a limit in the long run). We find a continuum of competitive equilibrium paths in conjunction with a unique balanced growth path in the growing economy, in which habits represent both envy/jealousy and altruism/admiration. In addition, in the social optimum under second-best fiscal policies, we show the existence of indeterminacy in transitional allocations along with a unique balanced growth path. Thus, we find that the introduction of habits influences the patterns of the transitional paths but has no impact on the balanced growth path in either competitive or social optimum allocations. The second-best fiscal policy, therefore, restores the socially optimal balanced growth rate but fails to select the unique transitional path among multiple competitive equilibrium paths in the imperfectly competitive economy.     

Too much of a good thing: Endogenous business cycles generated by bounded technological progress

Following Jones and Williams [Jones, C.I., Williams, J., 2000. Too much of a good thing? The economics of investment in R&D. Journal of Economic Growth vol. 5 (no. 1), 65–85], we assume that R&D is simultaneously subject to positive and to negative external effects (e.g., the non-rival nature of technology conflicts with congestion externalities). This observation allows to conceive an economy where two R&D sectors evolve without departing significantly from each other in terms of their productive results (society tends to penalize imbalances in technical progress, making negative external effects to appear associated to a sector when this outstands relatively to the other sector; the second sector, in turn, will be subject to positive externalities that reflect a catching up effect). The proposed framework, when associated to a growth setup, is able to replicate the existence of endogenous fluctuations and, therefore, it intends to be a contribution to the literature on endogenous business cycles.     

Perpetual youth and endogenous labor supply: A problem and a possible solution

In the “perpetual youth” overlapping-generations model of Blanchard and Yaari, if leisure is a “normal” good then some agents will have negative labor supply. We suggest a solution to this problem by using a modified version of Greenwood, Hercowitz and Huffman’s utility function. The modification incorporates real money balances, so that the model may be used to analyze monetary as well as fiscal policy. In a Walrasian version of the economy, we show that increased government debt and increased government spending raise the interest rate and lower output, while an open-market operation to increase the money supply lowers the interest rate and raises output.     

Endogenous fertility and growth in a model with old age support

Summary. This paper examines the interrelationship between capital accumulation, fertility, and growth by introducing an endogenous fertility decision into Diamond's (1965) neoclassical growth model. Under the assumptions that children provide old age support and that individuals incur a variable time cost of raising children, it investigates the potential for cyclical fluctuations in the capital-labor ratio and fertility, as well as for development trap phenomena to be observed. It is shown that when capital and labor are highly substitutable in production, there is a unique steady state equilibrium, and either damped or undamped oscillations in fertility and the capital-labor ratio may occur. However, when the elasticity of substitution between capital and labor is less than one, two steady state equilibria may exist; one with a high capital-labor ratio and a high rate of population growth, and the other with a lower capital-labor ratio as well as a lower population growth rate. The former is a saddle, while the latter may be either a source or a sink. In the latter case development traps are possible. Received: June 16, 1997; revised version: December 18, 1997     

Growth trends, cyclical fluctuations, and welfare with non-expected utility preferences

Using standard time-separable, discounted expected utility (EU) models, Lucas (Models of Business Cycles, 1987) and others argue that growth trends have a crucial, and cyclical fluctuations a trivial, effect on individuals' utility. These conclusions are drastically altered if, instead, non-EU preferences are assumed.     

Costly information acquisition. Is it better to toss a coin?

This paper presents a strategic model of common value elections with endogenous information acquisition. It proves that majoritarian elections can fail to aggregate information when voters have heterogeneous skills and provides necessary and sufficient conditions for information aggregation. Inefficiencies can be partially corrected by limiting participation to the most competent citizens, a result which provides a rational foundation for epistocratic government.     

Does demographic change matter for growth?

How important is the demographic transition for economic growth? To answer this question, this paper constructs a general equilibrium overlapping generations model with endogenous fertility. The model is calibrated to data from Taiwan, a country that experienced rapid economic growth while undergoing significant demographic transition. Our results suggest that more than one-third of the output growth in Taiwan during the past four decades can be attributed to demographic transition, while TFP growth explains another third and the remainder is mainly due to skill-biased technological progress. Our results show that demographic change is an important driver of the growth process in countries undergoing rapid fertility decline.     

经济滞胀风险及其宏观政策选择

我国经济的深层隐患不仅是通胀问题,更是通胀、停滞与失业并存的"滞胀"问题。相关分析表明,滞胀的风险来自于"投资拉动、出口依赖"的经济增长方式、货币超经济发行、流动性过剩、收入分配失衡、外部输入性以及不合理的经济体制等因素的叠加作用。抑制政府的投资冲动和财政需求,保障民生、促进社会公平、培育新的经济增长点,实现经济的内生型增长是今后我国宏观政策的关键所在。     

A costly state verification model with diversity of opinions

Summary. In simple models of borrowing and lending with ex-post asymmetric information, Gale and Hellwig (1985) and Williamson (1986) have shown that optimal debt contracts are simple debt contracts where borrowers repay a fixed interest rate whenever possible and lenders seize all the profit when borrowers default. In this note, we depart from their works by assuming that borrowers and lenders have heterogeneous beliefs, and show that simple debt contracts do not necessarily survive as optimal contracts.JEL Classification Numbers: G3, D8.     

FDI、人力资本积累与经济增长

本文在一个两国内生增长模型中研究了发达国家FDI产业选择与发展中国家经济增长和技术进步问题。本文分析表明,发达国家FDI产业的选择依赖于发展中国家的技术能力和竞争能力,发展中国家技术能力和竞争能力越强,发达国家则倾向于将更多更先进的产业转移到发展中国家;FDI能否给发展中国家带来技术进步和经济增长依赖于发展中国家的人力资本积累,只有辅之以较快速度的人力资本积累,FDI才能给发展中国家带来技术进步和经济增长。因此,普及和改善教育、提高国民的人力资本水平应该成为发展中国家提高自身技术能力、吸引FDI、促进技术进步和经济增长的核心政策。