Size,Age and Activity Sector on the Growth of the Small and Medium Firm Size

Although corporate growth is one of the most researched subjects in different areas of economic science, it is not currently based on a general theory or generally accepted conceptual definition. In spite of this, growth has usually been considered an essential objective for a firm, contributing to its survival and competitiveness. This work aims to provide a more in-depth study of the factors that condition the growth of small and medium-sized firms, by offering some empirical evidence that will contribute to its modelling, especially in relation to the influence of size, age and activity sector. In this context, we shall attempt to contrast the validity of Gibrat's approach and the Learning Theory.     

The time dependent vehicle routing problem with time windows: Benchmark problems, an efficient solution algorithm, and solution characteristics

An algorithm that can tackle time dependent vehicle routing problems with hard or soft time windows without any alteration in its structure is presented. Analytical and experimental results indicate that average computational time increases proportionally to the number of customers squared. New replicable test problems that capture the typical speed variations of congested urban settings are proposed. Solution quality, time window perturbations, and computational time results are discussed as well as a method to study the impact of perturbations by problem type. The algorithm efficiency and simplicity is well suited for urban areas where fast running times may be required.     

The Economic Adjustment Program for Portugal: assessing welfare impact in a heterogeneous-agent framework

The sovereign debt crisis, triggered by the 2007-08 global financial crisis, has affected several European Union (EU) countries, leading to unprecedented financial assistance programs. In May 2011, the Portuguese Government set an agreement with the Troika (a supranational institution composed by the European Commission (EC), the European Central Bank (ECB) and the International Monetary Fund (IMF)), through which, in exchange for external help, the Portuguese authorities committed to an Economic Adjustment Program (EAP). In order to assess the impacts of the EAP on welfare and, in particular, on inequality, this paper simulates the debt consolidation strategy proposed by the Troika using a general equilibrium model with heterogeneous agents. The model enables to explore the impacts of the fiscal adjustment on the endogenous cross-section distribution of income, wealth and welfare. Our results predict a positive net welfare gain, despite the existence of significant transition costs in terms of output losses and inequality, especially during the first years of implementation. Overall, the net positive welfare gains are biased towards the poorer, which means that the consolidation plan will be, in the end, equality-enhancing. These results reflect the instruments involved in the consolidation strategy: productive and unproductive expenditure cuts combined with a slight increase in social transfers. Furthermore, the simulation predicts a positive impact on the Portuguese net foreign asset (NFA) position. Assuming this prediction is correct, this strongly supports the motivation for the adoption of the Economic Adjustment Program which considers the large external indebtedness of Portugal as a central issue in the economic diagnosis.     

The moderating role of past experience in the formation of a tourist destination's image and in tourists’ behavioural intentions

The aim of this work is to understand the moderating effects of tourists’ prior experiences of a given destination on the process of image formation (in both its cognitive and affective dimensions) for that destination and on the influence that the image – together with the tourist's satisfaction – has on their loyalty-driven behaviours as expressed in the intention to recommend. To achieve this aim, a sample of 512 tourists was used and a multi-group analysis performed, distinguishing between first-time and repeat visitors. The findings reveal that experience has a moderating effect on the formation of the cognitive image and on the influence of the tourist's satisfaction on the overall image of the tourist destination. These findings have significant management implications in the context of helping to create and appropriately manage the image of a tourist destination.     

Measurement Error in Education and Growth Regressions*

The use of the perpetual inventory method for the construction of education data per country leads to systematic measurement error. This paper analyzes its effect on growth regressions. We suggest a methodology for correcting this error. The standard attenuation bias suggests that using these corrected data would lead to a higher coefficient. Our regressions reveal the opposite. We discuss why this is the case.     

Tradability and market penetration costs: Explaining foreign market servicing intensities

Industry level data shows striking differences among sectors in ratios of exports to FDI sales. We identify the elements behind the sectoral differences in the mode of foreign market servicing in the context of a general equilibrium model of monopolistic competition. Our calibration exercise shows that traditional margins such as transportation, fixed entry costs, utility weights, and dispersion of firm productivity are not enough to capture the observed sectoral differences, as is commonly assumed. We propose augmenting the model to allow for sectoral differences in intangible costs of operating in a foreign market in order to explain these observations.