The effects of European integration and the business cycle on migration flows: a gravity analysis

This paper explores how European integration, economic fluctuations, and the interactions of these factors affect bilateral migration flows. It focuses on how migration flows developed in the wake of the establishment of the European Monetary Union, and whether migration flows became stronger, and more responsive to economic fluctuations, in the euro area. It estimates a gravity equation of bilateral gross migration flows on a global sample and on a sample restricted to the first 12 members of the euro area. It is found that unemployment is a strong and robust determinant of bilateral migration flows both globally and in the euro area. EU accession and the lifting of labour market restrictions on new member states had a large effect on gross migration flows. While mutual euro area membership is not associated with an overall rise in migration, it is associated with increased flows from countries where unemployment is high to those where it is lower. Migration flows among the euro-area 12 have been on an increasing trend since the late 1990s; after falls in 2009 they picked up again in 2010 and 2011. The evidence overall suggests that labour mobility plays an increasing role in the adjustment to asymmetric shocks in the EU and the euro area.     

CEO Age,Risk Incentives,and Hedging Strategy

We test whether managerial preferences explain how firms hedge, using hand‐collected data on derivative portfolios in the oil and gas industry. How firms hedge involves choosing between linear contracts and put options, and deciding whether to finance these hedging positions with cash on hand or by selling call options. The likelihood of being a hedger increases with chief executive officer (CEO) age, and near‐retirement CEOs prefer linear hedging instruments. The predictions of the managerial risk incentives theory of hedging strategy, according to which managers with convex compensation schemes avoid hedging strategies that cap upside potential, find no support in the data.     

An Empirical Analysis of Working-Hours Constraints in Twenty-one Countries

The aim of this paper is to analyze working-hour constraints in an international setting. We use data from the latest Work Orientations data set of the International Social Survey Program (ISSP). The survey was conducted in 1997 and, in this paper, data for twenty-one countries are used. Our main results are: (1) In most countries the majority of workers do not face hours constraints; (2) Of the workers that are constrained, the largest portion is underemployed. Only in Denmark, Norway, and Switzerland is this not the case; (3) Workers in the five Eastern European countries considered here are among the most constrained; (4) A comparison with the 1989 ISSP data set reveals that hours constraints have increased in Israel, the United States, and West Germany and decreased in Great Britain and Norway in the 1990s; (5) GDP per capita and unemployment levels are correlated with hours constraints; (6) A multivariate analysis shows that certain socio-demographic characteristics and work conditions influence hours constraints and that these factors differ across countries.     

On the estimation of the effect of labour participation on fertility

In this paper we consider the estimation of the causal effect of female labour market status (participation and employment) on fertility. We focus on the sensitivity of the estimated effect to (i) the assumptions about the exogeneity of labour market status; and (ii) the time interval between the measurement of fertility and employment status. Using Spanish quarterly data, we estimate a switching probit model that accounts for the joint determination of both variables. In order to obtain a behavioural effect of the former on the latter, we look at the timing of conception instead of the timing of birth, and present alternative sets of estimates depending on the accuracy with which conception is measured (yearly or quarterly). Our results show a positive although non-significant effect of participation and employment on the probability of having the first child, once the sample of women who conceive in the same quarter (or one quarter later) in which labour market status is measured and the endogeneity between both variables is accounted for. We find that annual data tend to over-estimate the negative effect of employment or participation on the probability of having a child, but the main biases appear when looking at the effect of participation. We are grateful to Adrian Kalwij, Daniel Miles and two anonymous referees for helpful comments on this work. All remaining errors are our own.     

Finite sample evidence of IV estimators under weak instruments

We present finite sample evidence on different IV estimators available for linear models under weak instruments; explore the application of the bootstrap as a bias reduction technique to attenuate their finite sample bias; and employ three empirical applications to illustrate and provide insights into the relative performance of the estimators in practice. Our evidence indicates that the random‐effects quasi‐maximum likelihood estimator outperforms alternative estimators in terms of median point estimates and coverage rates, followed by the bootstrap bias‐corrected version of LIML and LIML. However, our results also confirm the difficulty of obtaining reliable point estimates in models with weak identification and moderate‐size samples. Copyright © 2007 John Wiley & Sons, Ltd.     

Una funzione ordinale di benessere sociale

In questo lavoro trattiamo il problema di come amalgamare preferenze di individui in una preferenza sociale in relazione a certe alternative determinando una preferenza sociale che soddisfa i due Assiomi e le Condizioni 1,4,5 di Arrow.

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Summary In this paper we deal with the problem of how to amalgamate individual preferences to form one social preference in relation to certain alternatives determining a social preference satisfying the 2 Axioms and the 1, 4, 5 Conditions of Arrow.

     

Testing the ‘Quiet Life’ Hypothesis in the Italian Banking Industry

In this paper we test the so‐called ‘quiet life’ hypothesis (QLH), according to which firms with market power are less efficient. Using data on the Italian banking industry for the period 1992–2007, we apply a two‐step procedure. First we estimate bank‐level cost efficiency scores and Lerner indices. Then we use the estimated market power measures, as well as a vector of control variables, to explain cost efficiency. Our empirical evidence supports the QLH, although the impact of market power on efficiency is not particularly remarkable in magnitude.