Compensation and Employment Impact of a Full-time MBA Program

The changing Master of Business Administration (MBA) marketplace and considerable direct and indirect costs for an MBA degree mean that school administrators and other stakeholders need a better understanding of what factors may influence the rate of return to their MBA programs. We investigated the potential of using analytical frameworks to identify those variables that may predict employment probabilities and starting salaries of full-time MBA graduates, in the context of a single, private MBA program. Our results suggest that for graduates of this particular program, pre-MBA salary and work experience in accounting, banking, finance, and consulting industries predicted higher post-MBA salary levels, as did having a liberal arts major as an undergraduate. Other human capital measures, such as Graduate Management Admission Test (GMAT) scores or elite undergraduate education, were not associated with higher employment probabilities or salary levels for this program’s students, while having an undergraduate business major was associated with lower employment probability. Although our study has limited inference to determine the value of an MBA education more generally, it has potentially important implications for administrators of MBA programs, who could gain useful insights on applying empirical analysis to their own programs. Although this process can be costly and time consuming without a supportive institutional environment, it could provide useful evidence-based guidelines for practice with substantial payoffs for both the program and the students.     

Individual heterogeneity in the returns to schooling: instrumental variables quantile regression using twins data

Considerable effort has been exercised in estimating mean returns to education while carefully considering biases arising from unmeasured ability and measurement error. Recent work has investigated whether there are variations from the “mean” return to education across the population with mixed results. We use an instrumental variables estimator for quantile regression on a sample of twins to estimate an entire family of returns to education at different quantiles of the conditional distribution of wages while addressing simultaneity and measurement error biases. We test whether there is individual heterogeneity in returns to education and find that: more able individuals obtain more schooling perhaps due to lower marginal costs and/or higher marginal benefits of schooling and that higher ability individuals (those further to the right in the conditional distribution of wages) have higher returns to schooling consistent with a non-trivial interaction between schooling and unobserved abilities in the generation of earnings. The estimated returns are never lower than 9 percent and can be as high as 13 percent at the top of the conditional distribution of wages but they vary significantly only along the lower to middle quantiles. Our findings may have meaningful implications for the design of educational policies.     

Wage Returns to Experience and Tenure for Young Men in Italy

This paper provides estimates of wage returns to experience‐, firm‐, sector‐ and occupation‐specific tenure for a sample of young Italian male workers. By comparing returns obtained using different estimators, I evaluate the importance of endogeneity and selection problems generated by specific unobserved components and individual fixed effects. After controlling for the role of collective bargaining agreements and occupation categories, results indicate that general labour market experience is the fundamental source of wage growth for blue and white collars, while returns to firm tenure are insignificant. There is some evidence of positive returns to sector and occupational tenure for white collars. Estimates from different sectors suggest that union coverage can be relevant in offsetting the role of search and matching in wage determination.     

成人高等教育的工资效应

成人高等教育是我国高等教育的重要组成部分,有别于普通高等教育,其本身也在过去几十年中经历了极大的发展变迁。本文使用国家统计局2007年全国城镇住户调查数据,包括其特别附加的教育问卷数据,来分析成人本科和成人专科的教育回报。我们发现,控制个人能力因素后,成人本科教育回报显著低于普通本科教育回报,而成人专科和普通专科的教育回报却没有显著差异。进一步的分析揭示,成人本科和普通本科的教育回报差距在工作经验较少(年龄较轻)的人群中更大。我们的研究凸显了成人教育,尤其是成人本科教育面临的定位问题。从学历补偿转向职业培训和继续教育,应该是成人教育的未来发展方向。     

Mobility of Top Incomes in Germany

I analyze German top income mobility using micro‐level panel data of personal income tax returns which are highly representative for top income taxpayers for the years 2001–06. Top income mobility is assessed in three dimensions: (i) persistence in top income fractiles and its stability over time, (ii) measures of individual mobility that are not dependent on the fractile size: the degree of mobility between equally sized groups and mobility in ranks, and (iii) mobility's impact on top income shares. Persistence in top income fractiles is comparatively high and fairly stable across the analyzed period. Top income recipients are less prone to downward mobility and see less variation in annual ranks than less rich tax units. Mobility's impact on income concentration is moderate. The top percentile's share is reduced by roughly 5 percent over six years.     

THE IMPACT OF PUBLICLY PROVIDED EARLY CHILDHOOD EDUCATION PROGRAMS ON DISTRICT‐LEVEL TEST SCORES

While the existing literature largely finds that standardized test scores are positively associated with participation in pre‐kindergarten programs at the student level, there is little research on the policy effect of publicly providing these programs to entire school districts. We attempt to partially fill this void by examining the effect that publicly provided pre‐kindergarten and full‐day kindergarten programs have on fourth grade student achievement in math and reading at the district level. The models utilize panel data from districts in Wisconsin along with fixed effects estimations. We find that once time‐invariant unobserved heterogeneity of a district is accounted for, preschool programs have small but significant impacts on a cohort's future math scores, particularly in less‐educated communities. Additionally, there is no evidence that preschool or full‐day kindergarten has an impact on future reading scores at the district level. (JEL I20, I28)     

Effective Taxation of Top Incomes in Germany

We exploit a dataset that includes the individual tax returns of all taxpayers in the top percentile of the income distribution in Germany to pin down the effective income taxation of households with very high incomes. Taking tax base erosion into account, we find that the top percentile of the income distribution pays an effective average tax rate of 30.5% and contributes more than a quarter of total income tax revenue. Within the top percentile, the effective average tax rate is first increasing, then decreasing, with income. Since the 1990s, effective average tax rates for the German super‐rich have fallen by about a third, with major reductions occurring in the wake of the personal income tax reform of 2001–05. As a result, the concentration of net incomes at the very top of the distribution has strongly increased in Germany.     

基于双胞胎数据的教育收益率估计

本文利用从人口抽样调查中生成的16—35岁的双胞胎数据,采用OLS和双胞胎组内差分法估计了教育的收益率及其异质性。主要得到两个结果:第一,在没有纠正测量误差的情况下,混合OLS估计的教育收益率为14%,而组内差分估计仅为4%左右。参照相关研究对结果进行一个简单的修正后,差分估计值也不到6%。这意味着用OLS会高估教育的收益率。第二,那些能力越高、家庭背景越好的个体,越有可能获得更多的教育,同时从教育中获得的收益也越多。     

IS THE COST OF DEBT CAPITAL HIGHER FOR YOUNGER FIRMS?

Not much is known about the returns to aging (maturing) in the market for small business finance. Using a large panel of closely held micro firms, we document that the cost of debt capital is higher for young firms. The main finding of this paper is that this negative qualitative relation is also obtained when cross‐sectional variation in unobservable creditworthiness of small businesses and within‐firm (i.e., inter‐temporal) variation in their observable creditworthiness are held constant. We control for the former by firm‐specific fixed effects and for the latter by a commercial credit score. We also provide an estimate of the quantitative magnitude of the aging effect, on which both economic theory and earlier empirical research are silent. We find that when a small business ages one year, its cost of debt capital decreases by 1–2 basis points. The effect is neither negligible nor alarmingly large.     

Exchange Rates and Long‐Term Bonds*

There is tentative evidence to suggest that the well‐documented empirical failure of uncovered interest parity (UIP) is confined to short‐term interest rates. However, tests of UIP for long‐term bonds are thwarted by various data problems. These data problems can be avoided by focusing on short investments in long‐term bonds. This paper concerns the relationship between changes in the US dollar–Deutsche Mark exchange rate and returns to short investments in US and German long‐term government bonds. The hypothesis that expected returns to investments in bonds denominated in the two currencies are equal is not rejected, and the estimated slope coefficients are positive. For corresponding short‐term interest rates, the typical finding of negative and large Fama coefficients is confirmed. We conclude that it is the maturity of the asset, rather than the investment horizon, that matters for the results.     

Stochastic Unit Roots in the Capital Asset Pricing Model?

Evidence is provided in this article for the existence of a stochastic unit root (STUR) in a proxy for the US risk‐free interest rate, in preference to a standard fixed unit root. The implications of the existence of the STUR, on estimating and testing the capital asset pricing model, are also examined through simulations. The effects of the STUR in the risk‐free interest rate, on conducting unit root tests for excess market returns and estimating the betas of assets, are found to be qualitatively similar to those of the standard (fixed) unit root. Thus, this article confirms the conjecture of Markellos and Mills (2001 , Applied Economics Letters, 8, pp. 499–502) on the risk‐free interest rate following near‐integrated processes, at least for a STUR.     

Self-Employment and Wage Earning in Hungary

This paper examines the earnings determinants of the self‐employed and wage earners in Hungary in the mid‐1990s, taking into account two forms of selection: selection into working or non‐working for every individual in its sample and selection into self‐employment or wage‐earning jobs for workers only. Previous studies use switching regression to examine the returns to individual characteristics, taking into account only selection into self‐employment or wage‐earning jobs. The authors find that the estimated returns to individual characteristics when accounting for both forms of selection, differ from estimates correcting for only selection into self‐employment or wage‐earning jobs. They also find that the earnings determinants of the two sectors are not significantly different from each other.     

Intragroup competition in public good games: The role of relative performance incentives and risk attitudes

We analyze a public good game (PGG) with intragroup competition in which, generally but not always, the dominant strategy is to not contribute; therefore, free riding is the unique Nash equilibrium, not achieving Pareto efficiency. We propose a PGG setup where subjects' contributions are rewarded with different individual returns following a rank‐order voluntary contribution mechanism. It is found that the resulting competition for a better return significantly increases contributions. This effect is sensitive to the salience of return differences rewarding higher contributions. Furthermore, the positive effect of return differences on contribution levels depends on an individual's return‐to‐risk sensitivity as elicited through an independent risk elicitation task.     

Optimal top marginal tax rates under income splitting for couples

This paper provides formulas for optimal top marginal tax rates when couples are taxed according to income splitting between spouses, consumption is taxed, and the skill distribution is unbounded. Optimal top marginal income tax rates are computed for Germany using a dataset that includes the tax returns of all German top taxpayers. We find that the optimal top marginal tax rate converges to about 2/3 and convergence obtains at income levels that are substantially higher than those currently subject to the actual top tax rate.     

AN EMPIRICAL ANALYSIS OF THE ASSOCIATION BETWEEN NEIGHBORHOOD INCOME AND UNIT NON‐RESPONSE IN THE SURVEY OF HEALTH,AGEING, AND RETIREMENT IN EUROPE

This paper estimates associations between individual and neighborhood characteristics and unit non‐response in a survey of the population aged 50 and over in the Netherlands in 2004. The statistical model includes interviewer fixed effects to control for the non‐random distribution of addresses over interviewers. The empirical analysis shows that, relative to individuals living in apartments, there is a lower unit non‐response among individuals living in houses and a higher unit non‐response among individuals living in old age institutions. Unit non‐response is positively associated with the size of a city. No age and gender effects are found. Unit non‐response is about 25 percent lower among individuals in the top than among individuals in the bottom of the distribution of neighborhood average income. This latter result implies that the response sample is biased toward individuals living in the more wealthy neighborhoods.     

FIXED COSTS,THE BALANCED BUDGET MULTIPLIER AND WELFARE*

In a two‐sector model, where one of the sectors is monopolistically competitive and subject to increasing returns to scale but without love for variety, we analyse the effects of a balanced budget fiscal expansion. Such an expansion could increase the welfare of the representative individual, if elasticities of substitution in production and consumption are low. A reorganization of production takes place—increasing returns enabling a rise in real income.     

The impact of public smoking bans on well‐being externalities: Evidence from a policy experiment

Recent studies on the effects of anti‐smoking policies on subjective well‐being present mixed results and do not account for potential externalities, especially among couples. We contribute to the literature by evaluating the impact of smoking bans on well‐being externalities among smokers and non‐smokers as well as couples of different types of smokers. We exploit the policy experiment provided by the timing of the UK public smoking bans and measure well‐being via the GHQ . We employ matching techniques combined with flexible difference‐in‐differences fixed effects panel data models on data from the British Household Panel Survey. The joint use of matching with fixed effects specifications allows building more comparable treatment and control groups, producing less model‐dependent results and accounting for individual‐level unobserved heterogeneity. We find that public smoking bans appear to have a statistically significant short‐term positive impact on the well‐being of married individuals, especially among women with dependent children. These effects appear to be robust to alternative specifications and placebo tests and are discussed in the light of the economic theory and recent evidence.     

Measuring Search Frictions Using Japanese Microdata

This paper estimates individual‐level matching functions to measure search frictions in the Japanese labour market and presents the determinants of search duration. We employ administrative microdata that track the job search process of job seekers who left or lost their job in August 2005 and subsequently registered at their local public employment service. Our finding is that the matching function exhibits decreasing rather than constant returns‐to‐scale for job seekers and vacancies. We also find that after controlling for the benefits period, job seekers who lost their job involuntarily were more likely than those quitting voluntarily to exit from unemployment.     

Lower and upper bounds of returns to schooling: An exercise in IV estimation with different instruments

Several recent studies based on `exogenous' sources of variation in educational outcomes show IV estimates of returns to schooling that are substantially higher than the corresponding OLS estimates. Card (1995a, Earnings, schooling, and ability revisited. Research in Labor Economics 14, 23–48) suggests that these results are explained by the existence of heterogenity in individual returns and by the fact that these studies are based on instruments that influence only the educational decision of individuals with high marginal returns due to either liquidity constraints or to high ability. This conclusion is consistent with the local average treatment effect (LATE) interpretation of IV (Imbens and Angrist (1994, Identification and estimation of local average treatment effects. Econometrica 62, 467–475) according to which IV identifies only the average returns of those who comply with the assignment-to-treatment mechanism implied by the instrument. We show evidence for Germany suggesting that returns to schooling are heterogeneous, instruments matter and the LATE interpretation of IV makes sense. With an appropriate choice of instruments we also show how IV can be used to approximate the range of variations of returns to schooling in Germany.     

Portfolio Choice and Liquidity Constraints*

We study the infinite‐horizon model of household portfolio choice under liquidity constraints and revisit the portfolio specialization puzzle. We show why the puzzle is robust to several model variations, and argue that positive correlation between earnings shocks and stock returns is unlikely to provide an empirically plausible resolution. We find that relatively small fixed costs for stock market entry are sufficient to deter stockholding because, for a plausible range of parameter values, households can achieve desired consumption smoothing with small or zero holdings of stocks. Such costs could arise from informational considerations, sign‐up fees, and investor inertia.