DOES STUDENT WORK REALLY AFFECT EDUCATIONAL OUTCOMES? A REVIEW OF THE LITERATURE

We review the theories put forward, methodological approaches used and empirical conclusions found in the multidisciplinary literature on the relationship between student employment and educational outcomes. A systematic comparison of the empirical work yields new insights that go beyond the overall reported negative effect of more intensive working schemes and that are of high academic and policy relevance. One such insight uncovered by our review is that student employment seems to have a more adverse effect on educational decisions (continuing studies and enrolment in tertiary education) than on educational performance (test and exam scores).     

EFFECT OF CORPORATE SCIENTISTS ON FIRMS’ INNOVATION ACTIVITY: A LITERATURE REVIEW

This study reviews the literature on the effect of corporate scientists on firms’ innovation activities. Traditionally, the scientist's role in a firm is linked to the processes of generation and absorption of scientific knowledge. However, a growing number of studies over the years show that the scientist's role in firm innovation processes is more extensive and that they contribute to the development of successful new products, processes and services. However, there are no comprehensive reviews of this literature. This paper fills the gap by providing a systematic review of the empirical literature on the role of the corporate scientists in the innovation process by investigating: (1) theoretical approaches used to evaluate the impact of scientists, (2) the importance for the firm's innovation activity of scientists’ heterogeneity, (3) those firm innovation activities over which scientists exhibit more influence, (4) the variables moderating the effect of scientists and (5) research implications for managers.     

HOW DO YOU CAPTURE LIQUIDITY? A REVIEW OF THE LITERATURE ON LOW-FREQUENCY STOCK LIQUIDITY

Researchers have various ways to measure liquidity but most of them come with both merits and demerits. This study provides a literature review of low-frequency liquidity measures with a primary focus on liquidity measurement as well as its implication on asset pricing. Based on the dimension it captures, a range of existing low-frequency measures are divided into four categories of liquidity proxies including transaction cost, volume, price impact, and multidimension-based measures. We review some well-established liquidity proxies, a new bid–ask spread estimator and price impact ratios proposed recently. Finally, we discuss how good low-frequency liquidity measures are at capturing standard liquidity benchmarks, which are constructed from high-frequency intraday data.     

HOW IMPORTANT ARE ENDOGENOUS PEER EFFECTS IN GROUP LENDING? ESTIMATING A STATIC GAME OF INCOMPLETE INFORMATION

We quantify the importance of endogenous peer effects in group lending programs by estimating a static game of incomplete information. Endogenous peer effects describe how one's behavior is affected by the behavior of her peers. Using a rich dataset from a group lending program in India, our empirical analysis presents a robust finding of large peer effects. The preferred model suggests that the probability of a member making a full repayment would be 12 percentage points higher if all the fellow members were to make full repayment compared with a scenario in which none of the other members repay in full. We find that peer effects would be overestimated without controlling for unobserved group heterogeneity and that inconsistencies exist in the estimated effects of other variables without modeling peer effects and unobserved heterogeneity. Copyright © 2012 John Wiley & Sons, Ltd.     

ARE WOMEN REALLY MORE RISK‐AVERSE THAN MEN? A RE‐ANALYSIS OF THE LITERATURE USING EXPANDED METHODS

While a substantial literature in economics and finance has concluded that ‘women are more risk averse than men’, this conclusion merits investigation. After briefly clarifying the difference between making generalizations about groups, on the one hand, and making valid inferences from samples, on the other, this essay suggests improvements to how economists communicate our research results. Supplementing findings of statistical significance with quantitative measures of both substantive difference (Cohen's d, a measure in common use in non‐Economics literatures) and of substantive overlap (the Index of Similarity, newly proposed here) adds important nuance to the discussion of sex differences. These measures are computed from the data on men, women and risk used in 35 scholarly works from economics, finance and decision science. The results are considerably more mixed and overlapping than would commonly be inferred from the broad claims made in the literature, with standardized differences in means mostly amounting to considerably less than one standard deviation, and the degree of overlap between male and female distributions generally exceeding 80%. In addition, studies that look at contextual influences suggest that these contribute importantly to observations of differences both between and within the sexes.     

WHAT DRIVES CAPITAL FLOWS TO EMERGING MARKETS? A SURVEY OF THE EMPIRICAL LITERATURE

This paper reviews the rapidly growing empirical literature on the drivers of capital flows to emerging markets. The empirical evidence is structured based on the recognition that the drivers of capital flows vary over time and across different types of capital flows. The drivers are classified using the traditional distinction between ‘push’ and ‘pull’ drivers, which continues to serve as a useful framework. Push factors like global risk aversion and external interest rates are found to matter most for portfolio debt and equity flows, but somewhat less for banking flows. Pull factors such as domestic output growth, asset returns and country risk matter for all three capital flows components, but most for banking flows.     

ARE ALL ECONOMIC FACTS GREATLY EXAGGERATED? THEORY COMPETITION AND SELECTIVITY

Abstract ..There is growing concern and mounting evidence of selectivity in empirical economics. Most empirical economic literatures have a truncated distribution of results. The aim of this paper is to explore the link between publication selectivity and theory contests. This link is confirmed through the analysis of 87 distinct empirical economics literatures, involving more than three and a half thousand separate empirical studies, using objective measures of both selectivity and contests. Our meta–meta‐analysis shows that publication selection is widespread, but not universal. It distorts scientific inference with potentially adverse effects on policy making, but competition and debate between rival theories reduces this selectivity and thereby improves economic inference.     

A SURVEY OF JEL CODES: WHAT DO THEY MEAN AND ARE THEY USED CONSISTENTLY?

The use and prevalence of JEL code categorization is wide in the field of economics, but what do JEL code classifications actually tell us? And are they used with consistency by academics in the field? Utilizing a data set of articles published in the American Economic Review from 1990 to 2008, we investigate whether there is heterogeneity in JEL codes assignments between authors and editors. We find that there is. A secondary goal of this paper is to survey overall thematic trends in JEL code usage over the past four and a half decades. One result is that JEL category M: Business Economics, in particular, appears to be thematically and spatially distinct from much of the rest of the published literature in the top general interest journals in the field.     

ARE EMPIRICAL MEASURES OF MACROECONOMIC UNCERTAINTY ALIKE?

Abstract There is a plethora of time series measures of uncertainty for inflation and real output growth in empirical studies but little is known whether they are comparable to the uncertainty measure reported by individual forecasters in the survey of professional forecasters. Are these two measures of uncertainty inherently distinct? This paper shows that, compared with many uncertainty proxies produced by time series models, the use of real‐time data with fixed‐sample recursive estimation of an asymmetric bivariate generalized autoregressive conditional heteroskedasticity model yields inflation uncertainty estimates which resemble the survey measure. There is, however, overwhelming evidence that many of the time series measures of growth uncertainty exceed the level of uncertainty obtained from survey measure. Our results highlight the relative merits of using different methods in modelling macroeconomic uncertainty which are useful for empirical researchers.     

MANAGING THE PROCESS OF REMOVING CAPITAL CONTROLS: WHAT DOES THE LITERATURE SUGGEST?

Economic theory suggests that opening the capital account should allow a country to diversify away economic shocks, increase capital inflows, expand economic growth and efficiency as well as encourage governments to pursue good policies. The empirical evidence with regard to these theoretical predictions, however, are in some instances debatable. Many studies, for example, have reported mixed results as it relates to the impact of capital account integration on growth, exchange rates, trade and policy discipline. This paper provides a review of this literature as well as some recommendations for policymakers in relation to managing the process of removing capital controls.     

LONG DARK SHADOWS OR INNOVATIVE SPIRITS? THE EFFECTS OF (SMOOTHING) BUSINESS CYCLES ON ECONOMIC GROWTH: A SURVEY OF THE LITERATURE

Abstract It is argued that fiscal policy can play a part in preventing a possible downward spiral or be instrumental in achieving a higher long‐term path of growth. Never before has this argument been advanced as frequently as in the current economic crisis. However, the economic literature – an overview of which is given here – does not provide an unambiguous answer, either theoretically or empirically, to the question of the relationship between (the smoothing of) cyclical fluctuations and long‐term growth. In this context, two main contrasting explanatory paradigms can be identified: Schumpeter’s concept of creative destruction and the learning by doing hypothesis. Even if it were possible to identify the relationship more clearly on this basis, it is important not to lose sight of the problems associated with the real‐time assessment of the current economic situation, time lags and political economic incentives even in difficult times.     

WHY ARE SOME PLACES RICH WHILE OTHERS ARE POOR? THE INSTITUTIONAL NECESSITY OF ECONOMIC FREEDOM

We survey perspectives on the economic differences between countries and argue that economic freedom is the key to prosperity. We close by outlining the policy implications. Specifically, removing obstacles to the exercise of economic freedom is an important step towards prosperity.     

WHAT'S TO KNOW? PUZZLES IN THE LITERATURE ON THE VALUE OF STATISTICAL LIFE

Abstract Notwithstanding the general acceptance of the value of statistical life (VSL) estimates for policy assessment purposes, several important unresolved issues remain. First, the results from revealed preference studies are systematically higher than those from stated preference studies, potentially limiting the usefulness of stated preference studies in generalizing the VSL estimates to different populations and kinds of risks. Second, extrapolating the results of meta‐analyses to project the VSL for different population groups requires that such generalization be reflective of the underlying economic content of what average VSL estimates reflect. Third, government agencies within and across countries place differing emphasis on types of VSL studies as well as differing reliance on individual studies versus meta‐analyses. Usually, there is no justification provided for the chosen approach.     

WHY DO WE LIE? A PRACTICAL GUIDE TO THE DISHONESTY LITERATURE

Over the last decade, a massive body of research has been devoted to uncovering human dishonesty. In the present paper, we review more than a hundred papers from this literature and provide a comprehensive overview by first listing the existing theoretical frameworks, and then covering the common empirical approaches, synthesizing the demographic and personal characteristics of those who cheat, identifying the behavioural mechanisms found that affect dishonesty and finally we finish by discussing how the empirical evidence fit theory. Overall, the review concludes that many people behave dishonestly, but also that it is a highly malleable behavior sensitive to elements such as decision contexts, behaviour of others, state of mind and depletion. The review can be used as an overview of the dishonesty literature or as a guide or work of reference for selected topics of interest.     

DO CRISES INDUCE REFORM? A CRITICAL REVIEW OF CONCEPTION,METHODOLOGY AND EMPIRICAL EVIDENCE OF THE ‘CRISIS HYPOTHESIS’

The notion that economic crises induce the adoption of reform ranks among the most widely accepted concepts in the political economics literature. However, the underlying mechanism of the so‐called ‘crisis hypothesis’ has yet to be fully understood. This paper provides a comprehensive survey of the relevant empirical evidence to date, and scrutinizes the operationalization of the hypothesis’ key concepts: crisis, reform and the political mediation of reform during crises. We argue that the social perception of both crises and the subsequent cost of reform requires consideration of how these concepts are operationalized. As a product of the broader economic and institutional environment, social perceptions largely determine the manner in which the political mediation of reform during crises works. Present‐day methodological approaches fail to adequately reflect social perceptions and consequently compromise the determination of what constitutes both crisis and the cost of reform in the context of the crisis hypothesis. Most notably, the identification of crises by fixed thresholds constructed around macroeconomic variables impedes the interpretation of the hypothesis’ underlying mechanism. A fuller treatment of social perception within the operationalization of the hypothesis’ key concepts can enhance our understanding of how economic crises influence political dynamics in bringing about reform.     

ARE IMPACTS OF EARLY INTERVENTIONS IN THE SCANDINAVIAN WELFARE STATE CONSISTENT WITH A HECKMAN CURVE? A META‐ANALYSIS

“Early intervention” has been a mantra in recent debates about human capital investment. Strong theoretical models motivate this focus by predicting that investment in children is most cost‐effective when they are young. The “Heckman curve” summarizes this idea visually (Heckman, 2006). However, hardly any reviews scrutinize this hypothesis empirically in modern welfare states such as those in Scandinavia that already invest heavily during early childhood. Any such review is ideally based on interventions conducted as randomized controlled trials (RCTs), set in the same welfare state, and comparable across ages through cost‐standardized effects. This meta‐analysis assembles cost‐standardized effect estimates from 10 RCTs, including a total of 18 intervention arms and 30,578 participants (aged 1.5–24 years), conducted by the same research center in the Scandinavian welfare state of Denmark. These interventions show significant effects relative to their costs, despite the large baseline investment level. Interventions targeted at younger children tend to produce larger effects, consistent with the Heckman curve. However, variation in the effect size within age groups is as large as it is across age groups. This indicates that both the quality and timing of investments matter and that “early interventions” are not necessarily superior to later interventions.     

THEORY AND EVIDENCE IN PSYCHOLOGY AND ECONOMICS ABOUT MOTIVATION CROWDING OUT: A POSSIBLE CONVERGENCE?

The empirical relevance of motivation crowding out is a controversial issue in economics and psychology. As already pointed out by Frey and Jegen ( 2001 ), this is partly due to the historical development of two distinct and parallel strands of literature that stem from different theoretical traditions, have radically different tenets and therefore, are difficult to reconcile. In this survey, we go back to the details of the debates that took place independently among psychologists and economists, and sketch an integrative interdisciplinary approach likely to favor a more fruitful collaboration between economics and psychology. From this perspective, experimental economics (both field and laboratory) is viewed as a major research field shedding new light on the conditions of relevance of motivation crowding out.     

IS THE CAPITAL STRUCTURE LOGIC OF CORPORATE FINANCE APPLICABLE TO INSURERS? REVIEW AND ANALYSIS

Since the financial crisis of 2008, next to banks, insurers have received increasing attention from researchers and regulators because of their crucial role in the financial system. A key point for a stable insurer is its capital structure, i.e. the choice between equity, debt and provisions in financing its operations. Based on earlier work a quickly developing literature has directly applied capital structure theories (in particular trade-off and pecking order) from corporate finance to insurers’ financing choices. Corporate finance concepts used herein however, are developed for industrial firms. In this paper we provide an overview of the literature on the capital structure of insurers, but contribute by systematically clarifying how to account for the specificities of insurers when transferring the trade-off and pecking-order logic from an industrial to an insurer context. This way, we add several new insights on an insurer's choice between equity, financial debt and provisions. In particular, we are able to explain why, as compared to industrial firms, insurers use less financial debt, and why insurers focus so strongly on self-financing. Finally, we identify multiple avenues for future research.     

A TIP OF THE ICEBERG? THE PROBABILITY OF CATCHING CARTELS

Reliable estimates of crime detection probabilities could help in designing better sanctions and improve our understanding of the efficiency of law enforcement. For cartels, we only have limited knowledge on the rate at which these illegal practices are discovered. In comparison to previous works, this paper offers a more parsimonious and simple‐to‐use method to estimate time‐dependent cartel discovery rates, while allowing for heterogeneity across firms. It draws on capture–recapture methods that are frequently used in ecology to make inferences on various wildlife population characteristics. An application of this method provides evidence that less than a fifth of cartelising firms are discovered. Copyright © 2013 John Wiley & Sons, Ltd.