Compensation and performance: An experimental study

This paper investigates how compensation structure affects performance in a simple but effort-consuming task. In this experimental study, the subjects were asked to multiply two-digit numbers for 40 min and were paid using either a linear (with different pay for performance sensitivities) or a convex (option-based) compensation mechanism. We found that per-unit wage has a non-linear positive effect on performance: whereas increasing per-unit compensation from $0 to $0.02 or from $0.05 to $0.15 has virtually no effect on performance, an increase from $0.02 to $0.05 results in higher productivity. We also found that option-based compensation results in better performance.     

An analysis of the length of labour and financial contracts: a study for Spain

This study investigates the connection between the duration of financial contracts and that of labour contracts. Workers with long–term contracts have incentives to invest in training. This makes them attractive to the entrepreneur. Furthermore, this behaviour will be reinforced if financial contracts are long–term, because it reduces the probability of an early liquidation as well as the dismissal of trained workers. As a conclusion, significant increases in the length of financing contracts should be accompanied by corresponding increases in the length of labour contracts. Support for this theoretical contention is found by testing it on a dataset composed of Spanish manufacturing firms for the period 1991–2000.     

Corporate performance implications of extended stakeholder management: New insights on mediation and moderation effects

This paper looks at the extent to which stakeholder pressure is related to the integration of management practices within the firm and at the link of integration with self-reported economic and environmental performance as an outcome variable. It specifically analyses possible mediation and moderation effects through multiple-group AMOS comparing subsamples. As concerns integration, a strong mediation effect is established. As far as country location is concerned, the results show a moderating effect on the paths of integration and internal stakeholder groups and on the paths of integration with, respectively, efficiency, image, risk (as economic performance variables) as well as emissions and inputs (as environmental performance variables). It also shows a negative moderator effect of age on the relationship between integration and inputs and that profitability has a positive moderator effect on the relationship between the pressure from public actors and integration.     

The impact of charter school attendance on student performance

We employ a panel of individual student data on math and reading test performance for five cohorts of students in Texas to study the impact of charter school attendance. We control for school mobility effects and distinguish movement to a charter school from movement within and between traditional public school districts. We find students experience poor test score growth in their initial year in a charter school, but that this is followed by recovery in the subsequent years. Failure to account for this pattern may lead to potentially misleading estimates of the impact of charter attendance on student achievement. Students who remain in charters largely recover from the initial disruption within approximately 3 years, and there is weak evidence that there may be overall gains from charter attendance within this period. Furthermore, students who return to traditional public schools after just 1 or 2 years in a charter do not appear to suffer a lasting negative impact despite their poor average performance in their first year of charter attendance.     

Teacher unions, teacher pay and student performance in India: A pupil fixed effects approach

This paper examines the relationship between teacher unionization, student achievement and teachers' pay using a cross-section of data from private schools in India. We use differences in student mark across subjects to identify within-pupil variation in achievement and find that union membership of the teacher is associated with reduced pupil achievement. We find no evidence this could be due to the unobservables not controlled for by this procedure. A school fixed effects equation of teacher pay shows that union membership raises pay and in this case too we find that remaining unobservables are unlikely to explain this outcome. We discuss the policy implications of the findings and show that the effectiveness of teacher credentials in improving teacher performance is linked to unionization.     

关于中国铝期货市场套期保值绩效的实证研究

套期保值是企业利用期货市场进行风险控制的重要过程。利用金融衍生产品进行风险管理的关键问题是确定套期保值比率。通过对中国沪铝期货套期保值绩效的实证研究发现基于DVECH-GARCH的动态套期保值比基于OLS的静态套期保值避险效果好。选择一定的套保模型进行对冲交易,铝加工企业能够有效地分散铝现货的市场风险,稳定企业生产经营。     

Government and industry performance: a comparative study

A number of UK industries are heavily dependent on the government as a major purchaser. The Ministry of Defence and the National Health Service are essentially monopsonists for the industries supplying them. As a monopsonist, government can influence the size, structure, conduct and performance of the industries. This paper examines wheather industries relying heavily on government purchases will differ in their structure, conduct and performance-characteristics and whether dependence on goverment can have favourable or adverse effects on industry performance. The hypothesis is tested by comparing the performance of industries dependent on government purchasing – defence, pharmaceuticals and medical equipment – with a control group of other non-dependent industries.     

Lag length selection and p -hacking in Granger causality testing: prevalence and performance of meta-regression models

The academic system incentivizes p-hacking, where researchers select estimates and statistics with statistically significant p-values for publication. We a     

An extended Heckscher-Ohlin model with transaction costs and technological comparative advantage

Summary. This paper introduces technological differences and transaction costs into the Heckscher-Ohlin (HO) model and examines the HO theorem, factor price equalization theorem, the Stolper-Samuelson theorem and the Rybczynski theorem. It shows that the HO theorem can be refined, and that the factor price equalisation theorem, the Stolper-Samuelson Theorem and the Rybczynski theorem do not always hold. It also shows that transaction costs play an important role in determining the equilibrium trade pattern.Received: 26 February 2001, Revised: 27 May 2003, JEL Classification Numbers: F10, F11. Correspondence to: Wenli ChengWe are grateful for comments from the anonymous referee, Hugo Sonnenschein, Guangzhen Sun and participants of the seminar on this paper at University of Washington.     

Labor market institutions and industrial performance: an evolutionary study

This study investigates the impact of labor market institutions on industrial performance from a Schumpeterian perspective. We suggest that labor market institutions play a very important role in the process of creative destruction, because they may create an environment that encourages and enforces innovation, and help to reallocate resources, most importantly labor, through swift elimination of weak performers. We specifically look at the effects of the quantity of labor market regulations and inter-industry wage differentials on labor productivity for a panel of 44 countries for the period 1965–1999. Our findings suggest that those countries that introduce more regulations on conditions of employment and wages achieve higher levels of productivity. Moreover, wage compression raises productivity by reallocating resources to productive activities.     

The effect of gender and race on student performance in principles of economics: the importance of personality type

This article analyses motion picture box-office gross revenue using a cross-section of films from 1997 to 2001. The dependent variable is total domestic box-office revenue. The independent variables investigated include: production budget; peak number of screens that the film was shown on in theaters; Consumer price index for movie tickets; personal income; season and year of the release in theaters; a measure of pre-existing audience; aggregate critic rating; MPAA rating; genre; word-of-mouth recommendation; the presence of popular stars and the award nominations. A distinction is made in the analysis between information available to the public prior to the release of the film in theaters (ex ante) and information available to the public after the film opens in theaters (ex post). Results for the ex ante ordinary least squares (OLS) regression reveal positive impacts of budget, summer and holiday release dates, critical reviews, sequels and several genres on gross revenue. Significant, positive determinants in the ex post OLS regressions include budget, the peak number of screens, sequels, critical reviews, summer and holiday releases, word-of-mouth, award nominations and star power.     

Viewpoint: An extended class of instrumental variables for the estimation of causal effects

Abstract We examine how structural systems can yield observed variables instrumental in identifying and estimating causal effects. We provide an exhaustive characterization of potentially identifying conditional exogeneity relationships and demonstrate how structural relations determine exogeneity and exclusion restrictions that yield moment conditions supporting identification. This provides a comprehensive framework for constructing instruments and covariates. We introduce notions of conditioning and conditional extended instrumental variables (XIVs). These permit identification but need not be traditional instruments, as they may be endogenous. We distinguish between observed XIVs and proxies for unobserved XIVs. A main message is the importance of sufficiently specifying causal relations governing the unobservables.     

An Economic Definition of the Middle Class

The concept of a middle class is prevalent in both common parlance and the social sciences; concern is frequently expressed that the middle class is shrinking, and politicians often position themselves as champions of the middle class. Yet the phrase “middle class” is extremely ambiguous; no consensus exists on either the upper bound or the lower bound separating the middle class from other classes. The present paper employs the government’s official poverty line as the demarcation between the poor and the middle class, and develops an equivalent distinction to separate the middle class from the wealthy. Based on the new definition, the paper provides some rough empirical estimates of the size of the American middle class over the 1989–2004 period.

An Economic Definition of the Middle Class

The concept of a middle class is prevalent in both common parlance and the social sciences; concern is frequently expressed that the middle class is shrinking, and politicians often position themselves as champions of the middle class. Yet the phrase “middle class” is extremely ambiguous; no consensus exists on either the upper bound or the lower bound separating the middle class from other classes. The present paper employs the government’s official poverty line as the demarcation between the poor and the middle class, and develops an equivalent distinction to separate the middle class from the wealthy. Based on the new definition, the paper provides some rough empirical estimates of the size of the American middle class over the 1989–2004 period.     

Does reducing student support affect scholastic performance? Evidence from a Dutch reform

This paper investigates the impact of student support on performance and time allocation of students in Dutch higher education. In 1996 the maximum duration of grants was reduced by 1 year, and thereby limited to the nominal duration of the study program. This reform could have had substantial financial consequences for students. We evaluate the effects of the reform using a difference-in-differences approach. Our main findings are that after the reform, students early in their study (i) switched less to other programs, (ii) obtained higher grades, while (iii) they did not spend more time studying or working. In addition, for students not older than 20 years when they started their study we find larger effects on all performance variables (switching, percentage of completed courses, graduation in the first year and grade point averages). These findings are consistent with recent evidence on heterogeneous treatment effects for higher ability students.     

Intention and Stochastic Outcomes: An Experimental study

Do people care about intentions – even when good intentions do not produce good results? In our experiments we find that rates of punishment and reward react strongly to intentions (the wage a firm decides to pay) and more modestly to distributional outcomes (the higher or lower wage actually received including the stochastic component). For example, workers who end up receiving medium wages respond much more positively when this resulted from the firm offering a high wage but bad luck lowered the worker's pay than when this resulted from the firm offering a low wage and good luck raised the pay.     

国外社会创业组织绩效评价模式与整合研究

社会创业组织的存在与社会经济进步和民主治理密切相关,但目前对社会创业组织绩效评价的系统研究还比较缺乏。本文首先从基于社会或财务分析角度以及研究方法与过程角度分别介绍了国外经典的基于平衡计分卡的绩效评价模式、基于投资社会回报的绩效评价方法、基于影响机制的绩效评价模式和基于研究方法论的绩效评价思想,然后构建了一个社会创业组织整合指标体系,旨在为后续研究提供相应的理论分埽与指导框架。     

An inference about the length of the time-to-build period

This study attempts to infer the length of aggregate time-to-build period by estimating DSGE models with different investment lags and comparing their fits to the data. The models considered in this study use two, four, six, and eight quarters of investment lags. The Bayesian estimation result indicates that the model with six quarters of investment lags fits the data significantly better than the others.