Empirical Likelihood‐Based Inference in Conditional Moment Restriction Models

This paper proposes an asymptotically efficient method for estimating models with conditional moment restrictions. Our estimator generalizes the maximum empirical likelihood estimator (MELE) of Qin and Lawless (1994). Using a kernel smoothing method, we efficiently incorporate the information implied by the conditional moment restrictions into our empirical likelihood‐based procedure. This yields a one‐step estimator which avoids estimating optimal instruments. Our likelihood ratio‐type statistic for parametric restrictions does not require the estimation of variance, and achieves asymptotic pivotalness implicitly. The estimation and testing procedures we propose are normalization invariant. Simulation results suggest that our new estimator works remarkably well in finite samples.     

CAN EVOLUTIONARY PSYCHOLOGY EXPLAIN REPRODUCTIVE BEHAVIOR IN THE CONTEMPORARY UNITED STATES?

Can evolutionary psychology explain human behavior in postindustrial societies? Critics point out that, contrary to its prediction, wealthy men in contemporary societies do not have more children than poor men. I replicate Pérusse's (1993) finding with a large, representative sample and demonstrate that, while they do not have more children, wealthy men nonetheless have more sex partners and copulate more frequently than poor men. They would therefore have achieved greater reproductive success in the ancestral environment without effective means of contraception.     

汉文《地球说略》在日本的出版与传播

美国传教士在中国传教期间翻译编著了一些宗教书籍和科普书籍,对中国人认识世界提供了一定的基本理论和基本知识。这些汉文西洋科学译书传入日本后,便以和刻本方式翻刻或译述传播开来,在日本普及了科学知识。《地球说略》作为世界地理学的入门书籍曾被日本人广泛地阅读,成为深受欢迎的地理书籍和介绍西洋情况的书籍。     

Changes in durable stocks, portfolio allocation, and consumption expenditure in the aftermath of the Kobe earthquake

To understand the household recovery process from unexpected serious damage caused by a natural disaster, we analyze household data from the Kobe earthquake in 1995. We address three questions—how damaged stocks of durable wealth are reinvested, how an ex post portfolio of borrowing or dissaving is reallocated to diversify the asset shocks caused by the disaster, and how formal and informal consumption insurance mechanisms are effective for amending home damage—all of which have been largely unanswered. We obtain three findings. First, people respond to negative income changes and housing damage by reinvesting damaged wealth. Second, households borrow extensively to amend the large housing damage caused by the earthquake. However, they dissave only for minor household asset damage. Third, consumption smoothing is not achieved for nondurable goods that are significantly affected by negative income changes and household asset damage. These findings suggest that asset shocks caused by a large natural disaster are not sufficiently diversified for households, indicating a large gap in designing effective insurance mechanisms.     

Why Men Commit Crimes (and Why They Desist)

Hirschi and Gottfredson (1983) claim that the relationship between age and crime is similar in all social and cultural conditions and that no current sociological or criminological theory can account for this similarity. We introduce the new field of evolutionary psychology and extend Daly and Wilson's (1988) work on homicide to construct a general theory of male criminality, which explains why men commit violent and property crimes. The theory can also explain the age-crime curve. It might also account for some empirical anomalies such as why physically smaller boys are more delinquent, and why violent criminals desist more slowly.     

Social Capital and the Human Psyche: Why Is Social Life "Capital"?

In this article, we propose a revised definition of social capital, premised on the principles of evolutionary psychology. We define social capital as any feature of a social relationship that, directly or indirectly, confers reproductive benefits to a participant in that relationship. This definition grounds the construct of social capital in human nature by providing a basis for inferring the underlying motivations that humans may have in common, rather than leaving the matter of what humans use capital for unspoken. Discussions and empirical reviews are presented on the innateness of human sociability, sex differences in sociability, and psychological mechanisms that mediate sociability .     

Contingent valuation method can increase procedural justice

We hypothesized that the contingent valuation method (CVM) can enhance the procedural justice of policy formation as perceived by people generally, which in turn increases public acceptance of policy. In Study 1, a survey (n=484) asked whether respondents would accept a one-off tax, the purpose of which would be to protect the natural environment of Yakushima Island, Japan. In one condition, the respondents were told that the amount of the one-off tax was determined using the CVM. In a second condition, no such instruction was given. In Study 2, 55 subjects were asked to indicate their acceptance, or otherwise, of a one-off tax for the protection of the natural environment of Yakushima Island when the tax was determined using the CVM, and when the tax was determined using cost–benefit analysis. The data from the survey and the experiment confirmed the hypothesis that the CVM enhanced the perceived procedural justice and acceptance of the tax.     

Nonparametric Estimation in Random Coefficients Binary Choice Models

This paper considers random coefficients binary choice models. The main goal is to estimate the density of the random coefficients nonparametrically. This is an ill‐posed inverse problem characterized by an integral transform. A new density estimator for the random coefficients is developed, utilizing Fourier–Laplace series on spheres. This approach offers a clear insight on the identification problem. More importantly, it leads to a closed form estimator formula that yields a simple plug‐in procedure requiring no numerical optimization. The new estimator, therefore, is easy to implement in empirical applications, while being flexible about the treatment of unobserved heterogeneity. Extensions including treatments of nonrandom coefficients and models with endogeneity are discussed.     

The tube method for the moment index in projection pursuit

The projection pursuit index defined by a sum of squares of the third and the fourth sample cumulants is known as the moment index proposed by Jones and Sibson [1987. What is projection pursuit? J. Roy. Statist. Soc. Ser. A 150, 1–36]. The limiting distribution of the maximum of the moment index under the null hypothesis that the population is multivariate normal is shown to be the maximum of a Gaussian random field with a finite Karhunen–Loève expansion. An approximate formula for tail probability of the maximum, which corresponds to the p-value, is given by virtue of the tube method through determining Weyl's invariants of all degrees and the critical radius of the index manifold of the Gaussian random field.