Search results

This article studies the evolution of the wage differentials between graduate (skilled) and non-graduate (unskilled) workers in several European countries from the beginning of the 1990s to the beginning of this century. The starting point is that all European countries show a common increase in the relative supply of skilled workers but different evolution of wage differentials. Economics theory usually relates the evolution of wage differentials not only to relative supply but also to skill-biased technological progress. I complement this explanation providing a theoretical model of wage bargaining where wage differentials are determined also by labour market institutions. My empirical findings show that both technological progress and labour market institutions are important in the determination of wage differentials. As for the former, I find that differentials depend on the pace and intensity at which technological progress takes place. As for labour market institutions, their effect, though important, is not always straightforward. In fact, some aspects of institutions, like minimum wage and the duration of unemployment benefits, favour unskilled workers while other aspects, like bargaining power and replacement rates from unemployment benefits, may magnify the differences in outside options and actually increase wage differentials.

While there has been intense debate in the empirical literature over the evolution of the college wage premium in the United States, its evolution in Europe has received little attention. This paper investigates the causes of the evolution of the college wage premium in 12 European countries from 1994 to 2009, assessing the relevance of the supply factor as a determinant of the college wage premium. I use cross-country variation in relative supply, demand, and labour market institutions to examine their effects on the trend in wage inequality. I address possible concerns of endogeneity of the relative supply using an IV strategy exploiting the differential legislations of university autonomy and their variations over time. Results show that the strong increase in the relative supply that European countries have experienced has decreased the college wage premium. The most relevant institution is the minimun wage, which significantly decreases college wage premium.

Policy-makers in OECD countries appear to be increasingly concerned about growing migration pressure from developing countries. At the same, at least within Europe, they typically complain about the low level of internal labor mobility. In this chapter, we try to cast some light on the issues of both internal and external labor mobility. We investigate the link between development and migration and argue, on both theoretical and empirical grounds, that it is likely be nonlinear. More precisely, we find that, in a relatively poor sending country, an increase in income will have a positive impact on the propensity to migrate, even if we control for the income differential with the receiving country, because the financial constraint of the poorest become less binding. Conversely, if the home country is relatively better off, an increase in income may be associated with a fall in the propensity to migrate even for an unchanged income differential. Econometric estimation for Southern Europe over the period 1962–1988 provides substantial support to this approach. We estimate first the level of income for which the financial constraint is no more binding, around $950, and then the level of income for which the propensity to migrate declines, which is around $4,300 in 1985 prices. We therefore predict a steady decline in the propensity to migrate from Southern European countries. Similarly, our results highlight the possibility that the pressure to migrate from Northern African countries and other developing countries may increase with further growth.

The chapter presents a historical and economic analysis of Nordic wage formation, with a special focus on how collective agreements really work. A stereotypical interpretation of the evolution of Nordic wage bargaining systems is that a centralised setting of wages has gradually been substituted with more decentralised pay bargaining. This overlooks the fact that central organisations could never really control wage levels, even in the golden age of centralised bargaining. Instead, central pay bargains defined minimum wage changes that ensured that local conflicts would be ruled out. Moreover, the central stipulations could often be overruled or adjusted at the local level. Following insights of Teulings and Hartog, we argue that the main function of Nordic collective agreements has always been to rule out local conflicts that would otherwise be initiated to seek local rents. Thus, collective agreements combine macroeconomic flexibility with adequate investment incentives at the local level. In this crucial sense, Nordic collective agreements are a completely stable institution. The most important transformation that has taken place is that formal peak bargaining on mean pay increases has been substituted with pattern bargaining where the manufacturing industry acts as a wage leader. Economic theory suggests that this almost amounts to centralised pay setting.

Due to the increasing size and complexity of construction projects, construction engineering and management involves the coordination of many complex and dynamic processes and relies on the analysis of uncertain, imprecise and incomplete information, including subjective and linguistically expressed information. Various modelling and computing techniques have been used by construction researchers and applied to practical construction problems in order to overcome these challenges, including fuzzy hybrid techniques. Fuzzy hybrid techniques combine the human-like reasoning capabilities of fuzzy logic with the capabilities of other techniques, such as optimization, machine learning, multi-criteria decision-making (MCDM) and simulation, to capitalise on their strengths and overcome their limitations. Based on a review of construction literature, this chapter identifies the most common types of fuzzy hybrid techniques applied to construction problems and reviews selected papers in each category of fuzzy hybrid technique to illustrate their capabilities for addressing construction challenges. Finally, this chapter discusses areas for future development of fuzzy hybrid techniques that will increase their capabilities for solving construction-related problems. The contributions of this chapter are threefold: (1) the limitations of some standard techniques for solving construction problems are discussed, as are the ways that fuzzy methods have been hybridized with these techniques in order to address their limitations; (2) a review of existing applications of fuzzy hybrid techniques in construction is provided in order to illustrate the capabilities of these techniques for solving a variety of construction problems and (3) potential improvements in each category of fuzzy hybrid technique in construction are provided, as areas for future research.

Surging natural disasters globally has precipitated renewed interests in disaster risk management. Though several global and regional disaster risk management policy frameworks have been put in place, it is necessary to evaluate their successes and capacities to deliver. This chapter reviews key disaster management frameworks, particularly the Yokohama Strategy, the Hyogo Framework for Action and the Sendai Framework for Disaster Risk Reduction. It examines the extent to which these policies shaped Africa’s regional disaster risk management processes, with an emphasis on sub-Saharan Africa (SSA). Through documentary analysis and scientific literature review, this chapter identifies key parameters that shaped SSA’s disaster risk reduction (DRR) processes and their implications for DRR policy instruments and impact studies. The analysis reveals a number of findings. First, the roll-out process of global disaster reduction and management policy processes and instruments is yet to optimally impact SSA, in terms of effective disaster management. Second, a more comprehensive understanding of the magnitude and severity of natural disasters could contribute to stem the damages linked to their occurrence. This is yet to be achieved. Third, paradigm shifts towards fully appreciating underlying disaster risk factors and manifestations could potentially support the practical drift from disaster coping and management towards risk identification, reduction and resilience building in SSA. Finally, instruments that prioritise capacity building (such as extension services training, research and development, information and communication), organisational governance, sustainable financing and technology, still relatively weak in SSA, should be stepped up to promote DRR capacities and strategies.