中国的健康人力资本与收入增长

本文首次将人口健康作为人力资本的一种形式,探讨其在中国经济奇迹中的作用。基于中国健康与营养调查(CHNS)数据,我们估计了以家庭为基础的个人收入生产函数,发现以下主要结论。首先,个人健康是决定中国家庭人均收入的重要因素。第二,相对而言,农村人口比城市人口的健康经济回报更大。第三,女性比男性的健康经济回报更大。本文首次将人口健康作为人力资本的一种形式,探讨其在中国经济奇迹中的作用。基于中国健康与营养调查(CHNS)数据,我们估计了以家庭为基础的个人收入生产函数,发现以下主要结论。首先,个人健康是决定中国家庭人均收入的重要因素。第二,相对而言,农村人口比城市人口的健康经济回报更大。第三,女性比男性的健康经济回报更大。     

TOWARDS AN ATTENTION-BASED VIEW OF THE FIRM

The central argument is that firm behavior is the result of how firms channel and distribute the attention of their decision-makers. What decision-makers do depends on what issues and answers they focus their attention on. What issues and answers they focus on depends on the specific situation and on how the firm’s rules, resources, and relationships distribute various issues, answers, and decision-makers into specific communications and procedures. The paper develops these theoretical principles into a model of firm behavior and presents its implications for explaining firm behavior and adaptation. © 1997 by John Wiley & Sons, Ltd.     

The Variability of IPO Initial Returns

The monthly volatility of IPO initial returns is substantial, fluctuates dramatically over time, and is considerably larger during “hot” IPO markets. Consistent with IPO theory, the volatility of initial returns is higher for firms that are more difficult to value because of higher information asymmetry. Our findings highlight underwriters’ difficulty in valuing companies characterized by high uncertainty, and raise serious questions about the efficacy of the traditional firm‐commitment IPO process. One implication of our results is that alternate mechanisms, such as auctions, could be beneficial for firms that value price discovery over the auxiliary services provided by underwriters.     

Investigation of Products Liability Attitudes and Opinions: A Consumer Perspective

The area of product safety and products liability legislation has been the subject of a great deal of academic research. Policymakers and business executives have been surveyed to determine their attitudes toward liability and product safety concerns. In addition, a substantial amount of research has focused on the impact of products liability trial outcomes on business and public policy. However, there are relatively few studies reporting opinions, attitudes, and predispositions of consumers regarding relevant liability topics. This article explores the consumer perspective on several critical questions relating to products liability and product safety. The results indicate a wide divergence of opinion exists among consumers on key issues shaping current trends in the products liability legal environment. Implications for consumers, business, and public policy are discussed.     

Customer Characteristics and Attitudes at Participatory and Supermarket Cooperatives

Rising food prices have contributed to an increase in the number of food cooperatives in the United States. The present study was undertaken to learn more about the characteristics and motives of food co-opshoppers at large supermarket cooperatives with paid staff and a full product range and small participatory co-ops with volunteer workers and selective merchandising policies. Customer counts and interviews were conducted at participatory and supermarket co-op stores and nearby commercial supermarkets in Northern California and in New York State. Shoppers at the participatory co-ops were found to be young, well-educated, ethnically homogeneous, non-affluent, and motivated primarily by low prices, food quality, natural food and co-op philosophy. Customers at supermarket co-ops tended to be more diverse in age and ethnicity, well-educated, with eclectic food tastes, and motivated primarily by convenience, low prices and co-op philosophy. Customers at near by commercial supermarkets were also heterogeneous in age and ethnicity and motivated primarily by price and convenience. The implications of the different customer populations and motives for the future of food co-ops are discussed.     

Market Making in the Options Markets and the Costs of Discrete Hedge Rebalancing

In this paper we provide empirical evidence consistent with the hypothesis that options market makers face risks in managing inventory that are unique to the options markets. In particular, we show that risks associated with the inability to rebalance an option position continuously and uncertainty about the return volatility of the underlying stock each account for a statistically and economically significant proportion of the bid-ask spreads quoted for a sample of Chicago Board Options Exchange options.     

THE GREAT DEPRESSION RECONSIDERED: IMPLICATIONS FOR TODAY

This paper reexamines the Great Depression of 1929–1933 within an analytical framework based on the terms of employment for labor. It shows that in areas such as the U.S. farm and Japanese industrial sectors where labor was employed organically—that is, as partners in common enterprise—costs proved flexible, prices fell, and output and employment held up in line with the predictions of Say's Law. Where labor was not employed organically—that is, labor was hired—output collapsed, unemployment mounted, and Say's Law failed. The apparent reason is that any hired input, capital or labor, demands downwardly rigid rates of pay. When demand softens, cost rigidity constrains price cuts, and firms must instead lay off labor. The paper also shows that given organic labor, even oligopolistic rivalry is sufficient to assure that prices will fall enough to sustain output and employment.     

Users versus nonusers of supplements: socioeconomic characteristics

The objective of this research was to determine the socioeconomic characteristics of supplement users versus nonusers. Seven western states (Arizona, California, Idaho, Nevada, New Mexico, Oregon and Wyoming) were surveyed to determine the socioeconomic profile of persons who either use or do not use supplements. Results indicated that 60.2% of the supplement users were female. The largest percentage was 31–40 years of age. By most definitions, supplement users tended to be well educated. Under adverse economic conditions, only a small percentage (7%) of users would give up supplements first when asked to choose from a variety of items that were considered to be nonessential.     

Labor Market Discrimination against Women with Disabilities

This article estimates the extent of wage discrimination and, for the first time, the employment effects of wage discrimination, against women with disabilities. In 1984, more than one-half of the offer wage differential between disabled and nondisabled women is attributable to discrimination, but the absolute wage differential is small. The results suggest that wage discrimination related to disability tends to be most severe for a relatively small group of women with impairments against which prejudice is most intense. There is a large difference between the employment rates of disabled and nondisabled women but only a small part of the differential is attributable to the disincentive effects of wage discrimination. The results also show that women with disabilities face a double burden of gender- and disability-related discrimination, but do not show that gender-related discrimination is worse for women who have a disability.