Human Capital Spillovers and Regional Development

This paper introduces technological interdependence into the theoretical framework of Gennaioli et al. (Quarterly Journal of Economics 2013; 128 : 105–164). This extension leads to an expression for regional development with spatial effects that motivates the incorporation of the geographical dimension into their newly constructed database and empirical analysis. Our estimation results corroborate both the necessity of accounting for the presence of spatial dependence to study the determinants of regional income per capita and the importance of educational attainment in explaining regional development differences. Furthermore, we provide evidence that human capital generates positive spatial spillovers. Copyright © 2016 John Wiley & Sons, Ltd.     

Efficiency of two sided investments in an equilibrium unemployment framework

This paper investigates the efficiency of investments by firms and workers in a matching model with high- and low-productivity jobs. Search is sector specific and random within sectors. Search frictions and ex-post bargaining imply that wage inequality arises as a result of the difference in investment costs between the sectors. The efficiency properties of the equilibrium are analyzed under the particular division in bargaining proposed by Hosios (1990). The conclusion is that the equilibrium is inefficient, with a too low fraction of workers and a too high vacancy-unemployment ratio in the high-productivity sector. The opposite happens in the low-productivity sector.     

Improving competitiveness through city marketing in Spanish hotels

The degree to which hotels can be competitive depends upon some very important factors, such as city promotion initiatives and city knowledge networks. The purpose of this study is to analyse and present how a city marketing procedure could become an effective tool for knowledge development and the competitiveness of Spanish hospitality hotels. Our findings support the view that in order to implement a marketing city programme oriented towards hotels, municipal managers need to provide and support knowledge creation networks. Furthermore, a hotel's size is significantly associated with levels of city promotion initiatives. Therefore, to consolidate marketing city results among small hotels, municipal managers need to reinforce the environment in which hotel managers operate and provide them with the means to survive in the context of a competitive knowledge-based economy.     

Product Innovation Management in Spain

In line with the latest studies of product innovation management, Angel Martinez Sanchez and Luis Navarro Elola report results from their study of 56 industrial firms in Spain. The results reveal a systematic process of new products development with little consideration given to innovation, but with a contrasting preoccupation with market activities.     

Methods for the Analysis of Explanatory Linear Regression Models with Missing Data Not at Random

Since the work of Little and Rubin (1987) not substantial advances in the analysisof explanatory regression models for incomplete data with missing not at randomhave been achieved, mainly due to the difficulty of verifying the randomness ofthe unknown data. In practice, the analysis of nonrandom missing data is donewith techniques designed for datasets with random or completely random missingdata, as complete case analysis, mean imputation, regression imputation, maximumlikelihood or multiple imputation. However, the data conditions required to minimizethe bias derived from an incorrect analysis have not been fully determined. In thepresent work, several Monte Carlo simulations have been carried out to establishthe best strategy of analysis for random missing data applicable in datasets withnonrandom missing data. The factors involved in simulations are sample size,percentage of missing data, predictive power of the imputation model and existenceof interaction between predictors. The results show that the smallest bias is obtainedwith maximum likelihood and multiple imputation techniques, although with lowpercentages of missing data, absence of interaction and high predictive power ofthe imputation model (frequent data structures in research on child and adolescentpsychopathology) acceptable results are obtained with the simplest regression imputation.     

Parametric inference from system lifetime data under a proportional hazard rate model

In this paper, we discuss the statistical inference of the lifetime distribution of components based on observing the system lifetimes when the system structure is known. A general proportional hazard rate model for the lifetime of the components is considered, which includes some commonly used lifetime distributions. Different estimation methods—method of moments, maximum likelihood method and least squares method—for the proportionality parameter are discussed. The conditions for existence and uniqueness of method of moments and maximum likelihood estimators are presented. Then, we focus on a special case when the lifetime distributions of the components are exponential. Computational formulas for point and interval estimations of the unknown mean lifetime of the components are provided. A Monte Carlo simulation study is used to compare the performance of these estimation methods and recommendations are made based on these results. Finally, an example is provided to illustrate the methods proposed in this paper.     

Return to tourist destination. Is it reputation,after all?

In this paper the hypothesis that repeated purchases in the tourism markets could be considered as a consequence of asymmetrical information problems is studied. This hypothesis is analysed with the case study of the island of Tenerife using the estimation of a count data model. It was found that the length of the stay and the information obtained from previous visits and/or relatives and friends might increase the return to a destination suggesting the presence of a reputation mechanism as proposed by Shapiro (1983 Shapiro, C. 1983. Premiums for high quality products as returns to reputations. Quaterly Journal of Economics, 98: 659–79. [Crossref], [Web of Science ®] , [Google Scholar]). The determinants of the willingness to return were also estimated, confirming the main results.     

Play Hard,Shirk Hard? The Effect of Bar Hours Regulation on Worker Absence

The regulation of alcohol availability has the potential to influence worker productivity. This paper uses legislative changes in bar opening hours to provide a potential quasi‐natural experiment of the effect of alcohol availability on working effort, focusing on worker absenteeism. We examine two recent policy changes, one in England/Wales and one in Spain that increased and decreased opening hours respectively. We demonstrate a robust positive causal link between opening hours and absenteeism, although short‐lived for Spain. The effect is long lasting for the UK where we provide evidence which suggests that increased alcohol consumption is a key mechanism.