Unobserved selection heterogeneity and the gender wage gap

Selection correction methods usually make assumptions about selection itself. In the case of gender wage gap estimation, those assumptions are especially tenuous because of high female nonparticipation and because selection could be different in different parts of the labor market. This paper proposes an estimator for the wage gap that allows for arbitrary and unobserved heterogeneity in selection. It applies to the subpopulation of “always employed” women, which is similar to men in labor force characteristics. Using CPS data from 1976 to 2005, I show that the gap has narrowed substantially from a ?0.521 to a ?0.263 log wage point differential for this population.     

Reparameterized inverse gamma regression models with varying precision

In this article, we propose a mean linear regression model where the response variable is inverse gamma distributed using a new parameterization of this distribution that is indexed by mean and precision parameters. The main advantage of our new parametrization is the straightforward interpretation of the regression coefficients in terms of the expectation of the positive response variable, as usual in the context of generalized linear models. The variance function of the proposed model has a quadratic form. The inverse gamma distribution is a member of the exponential family of distributions and has some distributions commonly used for parametric models in survival analysis as special cases. We compare the proposed model to several alternatives and illustrate its advantages and usefulness. With a generalized linear model approach that takes advantage of exponential family properties, we discuss model estimation (by maximum likelihood), black further inferential quantities and diagnostic tools. A Monte Carlo experiment is conducted to evaluate the performances of these estimators in finite samples with a discussion of the obtained results. A real application using minerals data set collected by Department of Mines of the University of Atacama, Chile, is considered to demonstrate the practical potential of the proposed model.     

Ambiguity and the value of information revisited

We analyze the value that decision makers place on the acquisition of information that partially or completely resolves uncertainty over the correct distribution of outcomes. We distinguish two sources of ambiguity of a given message service: posterior uncertainty over the correct probability distribution and uncertainty over the message which will be received. Given this distinction, we present a model where attitudes towards the two sources of ambiguity are separated and we study how these attitudes affect the value of information. The analysis clarifies and integrates seemingly contradictory results obtained previously in the literature.     

Bank presence in firm equity: A diversification based approach

This study analyses the possible reasons for banks deciding to invest in firm equity, based on the fundamentals of the strategic diversification literature. Those fundamentals suggest that it may be in response to the negative evolution of other aspects of banking business, namely, credit business, fixed interest business and services, as well as the bank's level of efficiency. The results confirm the hypotheses that the decision to hold equity in other firms is related to the evolution of the bank's other businesses. However, the results for savings banks differed from those for banks.     

NYSE Euronext-Deutsche Börse merger: Let the dance go on!

While it has often been said that trading is like dancing, exchanges have certainly been dancing with one another for some time, following the need to diversify and cope with the results of a challenging liberalisation process. The proposed merger between NYSE Euronext and Deutsche Börse would create the world’s biggest exchange by revenues and total value. This needs the approval of 47 regulators across the globe, including the US Department of Justice and the European Commission. These institutions would be well advised not to try to stop the dance.     

Factors enhancing the choice of higher resource commitment entry modes in international new ventures

The choice of entry mode in foreign markets is an important strategic decision with major consequences for the success of international new ventures (INVs). It is generally accepted that these firms choose relatively low-resource commitment entry modes to operate in foreign markets. Nevertheless, some researchers have suggested that higher resource commitment entry modes in foreign markets also seem to be competitive strategies for INVs. In this study, from a marketing/international entrepreneurship interface perspective and focusing on organizational issues, we center our attention on international market orientation as a neglected yet important factor in INVs’ choice of higher resource commitment entry modes in foreign markets. We suggest that an entrepreneurial orientation and the timing of international entry are important correlates to an international market orientation. We also suggest that the international learning effort of INVs through their international market orientation has a direct, positive impact on the resources these companies commit to their foreign markets through the use of higher resource commitment entry modes. Accordingly, the model proposes a positive effect of entrepreneurial orientation and early international entry on international market orientation which, in turn, is positively related to higher resource commitment entry modes. The hypotheses were tested on country-level data from Spain, using a structural equation model to analyze relationships between the latent variables.This study extends previous international entrepreneurship research, including insights on antecedents of international new ventures’ choice of resource commitment entry modes in foreign markets. The paper also goes further than previous international entrepreneurship research, by addressing the strategic consequences of rapid entry into foreign markets. Additionally, the results of this work encourage international entrepreneurs to look beyond the explicit value of experiential market knowledge to realize the potential value of international market orientation as an antecedent to higher resource commitment entry modes.     

Static efficiency decompositions and capacity utilization: integrating economic and technical capacity notions

Starting from existing static decompositions of overall economic efficiency on nonparametric production and cost frontiers, this article proposes more comprehensive decompositions including several cost-based notions of capacity utilization. Furthermore, in case prices are lacking, we develop additional decompositions of overall technical efficiency integrating a technical concept of capacity utilization. These new efficiency decompositions provide a link between short and long run economic analysis and, in empirical work, avoid conflating inefficiency and differences in capacity utilization. An empirical analysis using a monthly panel of Chilean hydro-electric power plants illustrates the potential of these decomposition proposals.     

Finance and growth in the EU: New evidence from the harmonisation of the banking industry

This paper presents an investigation of the finance–growth nexus by analysing the growth effect of the harmonisation of banking laws in the EU-15 over the period 1960–2001. The main findings point to the existence of a positive growth impact from banking harmonisation. These results are robust to controlling for other growth determinants, unobserved heterogeneity, potential simultaneity bias and business-cycle effects. The analysis of the transmission channels indicates that the harmonisation process influences economic growth mainly through the increase in the efficiency of financial intermediation.