Testing the intertemporal labor supply model: are jobs important?

The neoclassical life-cycle labor supply model assumes that hours of work are determined by labor supply choices alone and does not include a role for employers or job distinctions. An alternative model in which employers have an interest in employee hours and changing jobs is costly may reconcile weak and conflicting evidence regarding the neoclassical model. An important implication of such an alternative is that individuals may face hours constraints on a job and thus can choose hours freely only between jobs. This paper tests several implications of the neoclassical model against this alternative model of hours determination. Using a unique panel of individuals and jobs constructed using data on women from the 1988–1992 Panel Study of Income Dynamics, I compare hours variances and labor supply elasticities measured within and between jobs. Results provide some evidence against the neoclassical model and suggest that ignoring the role of employers in determining hours of work can lead to downward bias in estimates of labor supply elasticities.     

企业产品保证成本分析方法研究

文章通过开展对产品保证问题的研究 ,明确产品保证与产品开发、生产与销售各阶段工作的关系。在研究分析时首先应明确产品保证系统特性并研究适用的产品保证策略 ,其后根据产品保证成本模型 ,开展产品保证时间成本分析工作。     

CORPORATE CAPITAL STRUCTURE AND HOW SOFT BUDGET CONSTRAINTS MAY AFFECT IT

Abstract.  This survey paper examines existing theories of capital structure and related empirical tests with the aim to derive theoretical as well empirically testable predictions about the implications of the soft budget constraint for corporate capital structure. We show that the soft budget constraint syndrome is relevant for a variety of institutional environments, from central planning to capitalist economic systems, and consider features of company financing patterns in various institutional contexts. Special attention is paid to emerging and transition economies where, with the development of financial markets, companies reduce their financial dependence on the state and begin to borrow from a variety of sources. However, due to the persistence of soft budget constraints, corporate capital structure in transition and emerging economies may still deviate significantly from the capital structure of companies operating under hard budget constraints.     

直销产品的价格剖析

直销产品的价格一直为社会各界诟病,直销产品的市场表现同样令人刮目相看。文章从产品、销售模式等方面分析了直销产品高价格畅销的原因。     

Financial Constraints and Other Obstacles: are they a Threat to Innovation Activity?

Summary  In this paper we examine the importance of financial and other obstacles to innovation in the Netherlands using statistical information from the CIS 3.5 innovation survey. We report results on the effect of these obstacles on the firms’ decision to abandon, prematurely stop, seriously slow down, or not to start an innovative project. These results are compared with those from other studies in the Netherlands and other countries. We end with a discussion of policy measures that have been taken to overcome, or at least attenuate these obstacles, such as R&D tax incentives, venture capital financing and policy mix packages.      

Fiscal policy and private consumption behaviour: The Spanish case

In this article we analyse whether the Ricardian equivalence hypothesis is a valid approximation for Spains economic reality or whether there exist deviations from that situation which would be more in line with the conventional Keynesian perspective of the effects of debt on private consumption-savings decisions.Our aim is to contribute to the rather sparse empirical literature on the subject for the Spanish case. The analysis is based on annual aggregate data for Spain covering the years 1955 to 2000, and uses both the structural and the Euler equation approaches to test the neutrality proposition, and is thus to be considered as a generalization of foregoing work on the Spanish economy.The findings indicate that support for Ricardian equivalence is mixed, while we also find very little support for the Keynesian specification of consumption and fiscal policy.First revision received: March 2003 / Final version received: October 2003The authors wish to thank M. Ferré, J.M. González-Páramo, A. Marchante, P. Meguire, F. Pedraja, J.L. Raymond, J. Salinas and two anonymous referees for their helpful comments and suggestions on this paper. We also thank the participants in the V Encuentro de Economía Aplicada (Oviedo, Spain, June 2002) and the XVII Simposio de Análisis Económico (Salamanca, Spain, December 2002) for their comments. Any remaining defects are our responsibility. We also are grateful to the Institute for Fiscal Studies of Spain (Ministerio de Hacienda, Secretaría de Estado de Hacienda) for its financial support.     

The determinants of short selling: evidence from the Hong Kong equity market

While most financial regulators agree that short sellers have an important role to play in ensuring an efficiently functioning market, it is interesting to note that many did not hesitate to ban short selling during the recent financial crisis. This apparent contradiction most likely stems from a lack of understanding about what motivates short trading. In this paper, we focus on the determinants of short selling during ‘normal’ trading in the Hong Kong stock market. We find that dividend payments, company fundamentals, risk, option trading, the interest rate spread and past returns and short selling are all significant determinants of short selling.     

Earnings Announcements: Good News for Institutional Investors and Short Sellers

In this paper, we consider the trading behavior of institutional investors and short sellers around earnings announcements. The results suggest that institutional investors, and to a lesser extent short sellers, successfully anticipate earnings news. In the period immediately after the earnings announcement, both types of traders are active in the market and trade in response to the earnings announcement. In particular, short sellers are quick to increase their short positions when a company releases bad news. Institutional traders also trade in response to the news; however, they take longer to react.     

Short Sale Constraints and Dispersion of Opinion: Evidence from the Indian Equity Market

Short sale constraints can inflate market prices, as bearish investors cannot act on their market views. The paper uses data from the Indian equity market to test whether opinion dispersion leads to higher overpricing when short sales are prohibited. The Indian equity market provides a natural testing environment, as short sales were banned between 2001 and 2008. The empirical results offer supportive evidence of the relation between opinion dispersion and overpricing in a market with short sale constraints.     

税收有效性、征税权归属与宪法性约束

税收的有效性一方面蕴含着效率、公平与稳定的积极职能,另一方面包含着对产权结构的效益负责的消极职能。税收有效性由国家征税权负责实施,征税权归属构成税收有效性的政治基础,征税权代议制由于在其内部结构中设置了平衡机制而成为实践税收有效性的现代制度基石。伴随着政治结构中利益集团的成型,征税权代议制导致多数联盟对少数者的歧视与强占,为确保税收有效性,需要从程序和实体两个侧面对征税权施加外在的宪法性约束。