Environmental spillover effects on firm productivity and efficiency: An analysis of agri-food business in Southeast Spain

Spillover effects are treated as the influence of knowledge and innovation diffusion on an economic activity, but their analysis related to environmental practices within firms is still quite scarce. This study investigates the effect of environmental practices and related spillovers on productivity and efficiency in agri-food firms located in Southeast Spain. The low investment in research and development actions in comparison with the industrial sector, together with the relatively recent application of environmental requirements and the heterogeneity of environmental controls within firms have led to important changes in the organisation and management of their productive activity. These features are especially related to the implications that location and clustering factors have on environmental knowledge and innovation diffusion. Taking environmental management practices as knowledge of capital, we propose a specific analysis that evaluates the impacts of both environmental investment and spillover on the production function. The results indicate the relationship between productivity improvement and environmental practices, also showing the presence of positive spillovers. In a second-stage analysis, the incidence of environmental variables on the individual technical efficiency of firms is also determined. On the whole, the empirical analysis provides evidence of the links between environmental practices spillovers and economic performance.     

Self-employment and job generation in metropolitan areas, 1969–2009

Many regional development policy initiatives assume that entrepreneurial activities promote economic growth. Empirical research has presented rationale for this argument showing that small firms create proportionally more new jobs than large firms. However, little research has been performed on the issue of net job generation at the urban level, particularly when self-employment is considered as an indicator of entrepreneurial activities. This paper investigates to what extent US metropolitan areas in the 1969–2009 period characterized by relatively high rates of self-employment also have shown relatively high rates of subsequent total employment growth. The analysis corrects for the influence of sectoral composition, wage level, educational attainment, presence of research universities and size of the metropolitan area to measure the extent to which the number and quality of self-employed in a region contribute to total employment growth. It finds the relationship between self-employment rates and subsequent total employment growth to be positive on average during the 40-year period but to weaken over time.     

Economic impacts of developing a biofuel industry in Mozambique

ABSTRACT

Mozambique is one of the most promising African countries for producing biofuels and the national biofuel policy of 2009 identifies measures to incentivize biofuel production. Demand for biofuels in the Southern African Development Community is expected to increase over the next few years as 7 of its 15 member states have implemented or proposed the implementation of blending mandates by 2020. South Africa is one of these countries. Using a dynamic recursive computable general equilibrium (CGE) model, we estimate the impacts of expanding biofuel production in Mozambique under both commercial and smallholder-type farming models, including and excluding bagasse cogeneration.     

Spread component costs and stock trading characteristics in the Spanish Stock Exchange. Two flexible fractional response models

This paper investigates relationships between the spread component costs (adverse selection, order processing and inventory costs) and stock trading characteristics in the Spanish Stock Exchange (SSE), taking into account the random nature of these costs. First, we analyse the statistical properties of estimated spread components in the market, which are obtained by using two statistical models to decompose the bid–ask spread. We then propose a fractional response regression model based on two flexible cross-sectional probability density functions with covariates which accommodate certain aspects of the empirical estimates, such as skewness and bounded distribution. Our model has two main advantages: (i) it can be implemented easily in a maximum likelihood framework; (ii) in contrast to linear regression models, it provides a useful estimate of the statistical significance of the parameters, and predicts costs not only at the conditional mean but also by using quantiles of the estimated conditional distribution. The empirical results corroborate the presence of statistically significant large order processing costs and smaller adverse selection and inventory costs in the SSE. These spread components have a skewed empirical distribution and the proposed fractional regression models represent the behaviour of these costs reasonably well, surpassing the linear regression model in various specification tests.     

Asymmetric Margins in Prices and Retail Supply Chain Integration: The Spanish Vegetable Case

Several studies have observed asymmetric behavior between sale prices in the supermarket and the price paid to the farmer. This article presents the consequences derived from a simplified framework considering a scenario in which the retailer wishes to maintain balanced profits due to external pressures or because the retailers' strategy to differentiate themselves from the competition requires greater integration in the supply chain. It is shown that the price-fixing decision of the distributor may depend on the risk, measured by the relationship between demand elasticity and variable costs, as a result of uncertainty in consumer response to price variations. This risk arises from the existence of supply that is highly changeable in the short term and demand that is unpredictable.     

Start-up incentives: Entrepreneurship policy or active labour market programme?

As several European governments develop new start-up programmes during recessions, the appropriateness of these policies recently has become a hot policy issue. This study suggests that the contribution of these incentives is dubious, if aimed to combat economic and jobs crises as part of the entrepreneurship policy, and can be shaped by various country-specific factors, such as the economic situation and the stringency of labour laws. To provide support for these claims, this paper investigates the underlying determinants of an individual's decision to switch from unemployment to self-employment in Europe and stresses the need to devote special attention to the role of three essential dimensions: (i) the existing heterogeneity within self-employment, by considering self-employed individuals who hire employees (employers) and self-employed individuals without personnel (own-account workers) as separated groups; (ii) the effects of different measures of social capital and network contacts, as forms of micro level institutional factors; and (iii) the explanatory power of cross-country differences in the state of the economy, expenditure on start-up incentives, and the stringency of labour laws, as forms of macro level institutional factors. This study has useful theory and policy implications for entrepreneurship development.     

A survival analysis of de novo co-operative credit banks

This paper studies the features of de novo Co-operative Credit Banks (CCBs) established in Italy during the 1990s. It shows that de novo CCBs in the start-up period are endowed with a higher default risk than long-run incumbent CCBs. Split-population duration models distiguish the determinants of duration and probability of default. The focus is on those determinants related to market structure. We find that duration is positively related to the market share of large banks. Conversely, duration is higher when there are no incumbent CCBs in the same market. Survival probability is directly related to the local level of GDP.All correspondence to Paolo Emilio Mistrulli. The authors thank Francesco Cesarini, Robert DeYoung, Roberto Di Salvo, Dario Focarelli, Eugenio Gaiotti, Leonardo Gambacorta, Giorgio Gobbi, Francesca Lotti, Fabio Panetta, Alberto F. Pozzolo and two anonymous referees for very valuable comments. Any remaining errors are those of the authors alone. The opinions expressed do not necessarily reflect those of the institutions with which they are affiliated.First version received: October 2001/Final version received: February 2004     

Incentive compatibility constraints and dynamic programming in continuous time

This paper is devoted to the study of infinite horizon continuous time optimal control problems with incentive compatibility constraints that arise in many economic problems, for instance in defining the second best Pareto optimum for the joint exploitation of a common resource, as in Benhabib and Radner [Benhabib, J., Radner, R., 1992. The joint exploitation of a productive asset: a game theoretic approach. Economic Theory, 2: 155–190]. An incentive compatibility constraint is a constraint on the continuation of the payoff function at every time. We prove that the dynamic programming principle holds, the value function is a viscosity solution of the associated Hamilton–Jacobi–Bellman (HJB) equation, and that it is the minimal supersolution satisfying certain boundary conditions. When the incentive compatibility constraint only depends on the present value of the state variable, we prove existence of optimal strategies, and we show that the problem is equivalent to a state constraints problem in an endogenous state region which depends on the data of the problem. Some economic examples are analyzed.