Assessing output and productivity growth in the banking industry

This paper assesses the evolution of output and productivity in the Greek banking industry for the period 1990–2006. Three main categories of bank output were estimated based on modern theoretical approaches, while for the estimation of output and productivity (partial and total factor) we relied on the index number method (Tornqvist index). We also considered the effect of labor quality on banks’ productivity and the contribution of total factor productivity to bank output growth. Bank output and labor productivity outpaced considerably the respective GDP growth and labor productivity of the Greek economy during the period under examination. Capital and total factor productivity have also improved remarkably mainly since 1999, due to the structural changes that took place within the industry, capital (mainly IT) investments and improvement in the quality of human capital.     

Bucking the Trend: The Informativeness of Analyst Contrarian Recommendations

This paper examines price reactions to analysts’ recommendations issued in the opposite direction of recent stock price movements. We find that upgrade and downgrade contrarian recommendations induce larger market reactions than noncontrarian recommendations, consistent with the view that they are more informative. These results are strongest in the period before Regulation Fair Disclosure, consistent with the view that private information was likely curbed after its implementation. Contrarian downgrades are more likely to be issued by all‐star analysts, but less likely by experienced and busy analysts suggesting that contrarian recommendations are subject to career concerns.     

Why do firms cross-list? International evidence from the US market

Using a modified international asset-pricing model we find strong evidence that publicly quoted firms cross-list when exhibiting strong performance in their domestic market and wish to take advantage of this situation. After cross-listing, this advantage disappears. Our sample consists of daily data for 1165 firms from 47 countries that have cross-listed on the US equity markets over the period 1976–2007. Within the context of this model we provide tests of the validity of the main hypotheses of capital market segmentation and investor protection, which provide explanations for equity cross-listing and investigate whether the nature of the market (regulated or unregulated) and the accompanying legal framework (common or civil law) can account for the impact of cross-listing on returns. Supporting the segmentation hypothesis, we report a decrease in local market risk after cross-listing. However, we find that the magnitude of such a decrease is diminishing over time as international markets become more integrated. On the other hand, we do not find any change in the global market risk after cross-listing, except for firms that cross-listed between 2001 and 2007, where their exposure to international market risk decreases. Furthermore, we find no evidence to support the investor protection hypothesis.     

U-type and column-orthogonal designs for computer experiments

U-type designs and orthogonal Latin hypercube designs (OLHDs) have been used extensively for performing computer experiments. Both have good spaced filling properties in one-dimension. U-type designs may not have low correlations among the main effects, quadratic effects and two-factor interactions. On the other hand, OLHDs are hard to be found due to their large number of levels for each factor. Recently, alternative classes of U-type designs with zero or low correlations among the effects of interest appear in the literature. In this paper, we present new classes of U-type or quantitative \(3\) -orthogonal designs for computer experiments. The proposed designs are constructed by combining known combinatorial structures and they have their main effects pairwise orthogonal, orthogonal to the mean effect, and orthogonal to both quadratic effects and two-factor interactions.     

Parametric decomposition of the input-oriented Malmquist productivity index: with an application to Greek aquaculture

Using a stochastic frontier approach and a translog input distance function, this paper implements the input-oriented Malmquist productivity index to a sample of Greek aquaculture farms. It is decomposed into the effects of technical efficiency change, scale efficiency change, input-mix and, technical change, which is further attributed to neutral, output- and input-induced shifts of the frontier. Implementable expressions for the aforementioned components are obtained using a discrete changes-approach that is consistent with the usual discrete-form data. Empirical findings indicate that the productivity of the farms in the sample increased during the period 1995–1999 and it was shaped up primarily by the input mix-effect and technical change.     

Did the euro give us a break in inflation?

The introduction of the euro was accompanied by promises of lower inflation rates; however, the public feels that inflation increased when the euro was introduced. Officials admit that certain sectors experienced substantial price increases, but they claim that the overall inflation rate did not increase. This paper investigates whether inflation in 15 European countries experienced a structural break after the euro was introduced using new powerful and serial correlation robust test statistics. We find evidence that the European Monetary Union (EMU) countries experienced a positive break in inflation after 1999. Our results demonstrate that inflation just after the introduction of the euro was higher relative to the inflation just prior to the introduction of the euro. Additionally, we find no evidence of positive breaks for the non-EMU countries when the euro was introduced.     

Innovation diffusion with generation substitution effects

Markets of high technology products and services, such as telecommunications, are described by fast technological changes and rapid generational substitutions. Since the conventional modeling approaches that are based on diffusion models do not usually incorporate this important aspect into their formulations, the accuracy of the provided forecasts is consequently affected. The work presented in this paper is concerned with the development of a methodology for describing innovation diffusion, in the context of generation substitution. For this purpose, a dynamic diffusion model is developed and evaluated, based on the assumption that the saturation level of the market does not remain constant throughout the diffusion process but is affected by the diffusion of its descendant generation, as soon as the latter is introduced into the market. In contradiction to the conventional diffusion models, which assume static saturation levels, the proposed approach incorporates the effects of generation substitution and develops a diffusion model with a dynamic ceiling. The importance of such an approach is especially significant for markets characterized by rapid technological and generational changes. Evaluation of the proposed methodology was performed over 2G and 3G historical data and for a number of European countries, providing quite accurate estimation and forecasting results, along with important information regarding the rate of generation substitution.     

Institutional change in the Schumpeterian–Baumolian construct: power,contestability and evolving entrepreneurial interests

Baumol's hypothesis, i.e. that the allocation of entrepreneurial talent in productive, unproductive and destructive activities is determined by the rules of the game, is supported by a growing body of empirical research and underpins new avenues of research in entrepreneurial studies. However, Baumol's paper offers precious few insights, beyond policy action, regarding how change to the rules of the game can be effected, because it views institutions as endogenous. This paper sets out to address this gap through an extension of Schumpeterian–Baumolian construct. The paper argues that changing institutions is a contestable process: its outcome determined by the complex nexus of interests and power endowments of actors. Changing the outcome of this contestation is dependent on the emergence of new entrepreneurial groupings and/or the evolution of the power endowments or interests of existing ones. Two historical illustrations are used to support the hypothesis and of this study.     

Nominal uncertainty and inflation: The role of European union membership

We provide evidence that higher inflation uncertainty leads to higher inflation in the new European Union (EU) member states and candidate countries only prior to EU accession. During EU accession and entry, inflation uncertainty has no effect on mean inflation.