Determinants of energy use in the informal food sector

Although enterprises in the informal food sector require energy to transform, cook and process food, energy-use patterns in this sector are not well understood by policymakers and the local-level authorities who regulate their trading activities. This paper reviews relevant literature and presents empirical data collected in Rwanda, Senegal and South Africa on the use of traditional and modern energy sources by informal food sector operators. Our sample includes male- and female-operated enterprises in the urban centres of three African countries where the informal food sector is important, not only for providing the convenience of affordable and readily prepared meals, but also as a source of income for women and men in developing countries. Multiple fuel-use and energy-stacking strategies are common among informal food enterprises and policy needs to acknowledge this if it is to intervene in ways that will benefit both enterprises and regulators.     

Technological leadership and sectorial employment growth: A spatial econometric analysis for U.S. counties

This paper studies the determinants of technological catch‐up considering spatial and sectoral aggregation of industries. We investigate how geographical and technological proximity to the technology leader impact regional employment growth. We model technological progress by means of a hierarchical process of catch‐up to the technology leader. We also incorporate measures for knowledge spillover effects to test the roles of competition, specialisation, and diversity at the industry level. Empirical results using data at the county level for different economic sectors (2‐dig NAICS) for the United States indicate that human capital plays a crucial role in promoting sectoral employment growth. The association between technological/geographical distance to the technology leader and employment growth varies across sectors.     

Make IT Work: The Labor Market Effects of Information Technology Retraining in the Netherlands

De Economist - The aim of this paper is to evaluate the effects of an active labor market program (ALMP) for higher educated workers in the Netherlands. The one-year program is characterized by six...     

The Labor-Managed Firm: Permanent or Start-Up Subsidies?

We explore a new argument that seeks to explain the near absence of the labor-managed firm or cooperative, despite a range of inefficiencies attributed to the present-day capitalist firm. We derive the crucial condition for the emergence of labor-managed firms and show that it is unduly restrictive from an efficiency point of view. The policy implication is that public intervention to promote labor-managed firms should primarily be in the form of start-up subsidies rather than in providing permanent tax subsidies.     

Salespersons as Internal Knowledge Brokers and New Products Selling: Discovering the Link to Genetic Makeup

Managers increasingly realize the importance of involving the sales force in new product development. However, despite recent progress, research on the specific role of the sales force in product innovation‐related activities remains scarce. In particular, the importance of a salespersons' internal knowledge brokering has been neglected. This study develops and empirically validates the concept of internal knowledge brokering behavior and its effect on selling new products and developing new business, and explores whether a salesperson's internal brokering qualities are determined by biological traits. The findings reveal that salespeople with the DRD2 A1 gene variant engage at significant lower levels of internal knowledge‐brokering behavior than salespeople without this gene variant, and as a result are less likely to engage effectively in new product selling. The DRD4 gene variant had no effect on internal knowledge brokering. Management and future research implications are discussed.     

WHICH AGGLOMERATION EXTERNALITIES MATTER MOST AND WHY?

This paper revisits the ongoing discussion on the importance of agglomeration externalities – specifically specialization, diversity and competition effects – that may contribute to innovation, productivity and urban employment growth. Previous meta‐analyses suggested that the evidence on agglomeration externalities is strongly context‐specific. Expanding an earlier analysis of 31 articles, we seek to draw in this paper more robust conclusions by means of the statistical evidence for agglomeration externalities presented in 73 scientific articles, all building on the seminal work of Glaeser et al. (1992). Our results confirm that the heterogeneity among studies is huge and can only be partially accounted for by means of an ordered probit analysis. Additionally, some evidence of publication bias is found. We conclude that the conventional lines of inquiry in this literature may now have reached strongly diminishing returns. New lines of inquiry, using rich micro‐level data on firms and workers, dynamic general equilibrium models at the macro level, more attention for spatial and temporal variation in the impacts of agglomeration, and further investigations into the spatial scope of externalities are promising avenues for further research that can enhance our understanding of how agglomeration externalities continue to fuel our increasingly urbanized world.     

Deoxynivalenol (DON) in wheat: an example of weighing the pros and cons of food stuffs

A Committee of the Health Council of the Netherlands advised on deoxynivalenol (DON), a mycotoxin occurring in cereals. TDIs of 1.0 and 0.5?µg.kg_{body weight} ^?1.day^?1 have been based on mice and pig studies in which DON reduced growth. In 1999, the 50^th and 95^th percentiles of DON intake by 1‐4‐year‐old children were, respectively, 1.3 and 2.4?µg.kg_{body weight} ^?1.day^?1. The Committee considered: (i) TDI contains safety factors, (ii) a slightly reduced weight gain is not necessarily harmful, (iii) when growth rate is highest, children consume little or no wheat, and (iv) in real life, exposure varies, causing the effect to be smaller. The Committee concluded that an exposure that only incidentally exceeds—up to about five times—0.5?µg.kg_{body weight} ^?1.day^?1 very unlikely inhibits weight gain. More severe effects on immunity, fertility and the foetus may occur at intakes higher than 2.5µg.kg_{body weight} ^?1.day^?1. Nonetheless, toxin exposure should be kept as low as possible. The Committee advised to agriculturally reduce DON content; second one may exclude wheat with high DON content for human consumption. Limits of 500 and 100?µg/kg_wheat prevent exposure exceeding 1.5 and 0.5?µg.kg_{body weight} ^?1.day^?1, respectively. As wheat products are good sources of nutrients, the Committee advised against discouraging their consumption.     

Common socio-economic cycle periods

We present a meta-analysis of cycle periods in historical socio-economic data found in the K-wave literature. The literature on stochastic and deterministic cycles in variables such as the consumer price index, employment, interest rates, commodity prices, GDP, war and hegemony is huge and scattered. However our meta-analysis reveals various commonalities. Our key finding is that there is a common set of cycle periods that is common across most socio-economic variables.     

Macroeconomic Consequences of Outsourcing: An Analysis of Growth, Welfare, and Product Variety

Outsourcing of non-core activities is nowadays a common business strategy. Declining transaction and transportation costs caused by the advent of Information and Communication Technology are a potentially important driving force behind this development. This paper provides a theoretical framework for analysing a firm's incentive to follow such a strategy of outsourcing and its consequences for macroeconomic variables like growth and product variety. We divide production activities into core and non-core activities. Non-core activities can be performed within the firm or can be mediated by the market. We derive conditions under which outsourcing occurs, and under which outsourcing is socially desirable. These conditions do not necessarily coincide. Outsourcing may hence be a profitable strategy for firms, while it is socially suboptimal. Crucial parameters in the model are the relative scale of core versus non-core activities, management costs, transaction costs and love for variety of consumers.