Access regulation and investment in next generation networks — A ranking of regulatory regimes

This paper analyses how different types of access regulation to next generation networks affect investments and consumer welfare. The model consists of an investment stage with uncertain returns and subsequent quantity competition. The access price is a function of investment costs and the regulatory regime. A regime with fully distributed costs or a regulatory holiday induces highest investments, followed by risk-sharing and long run incremental costs regulation. Simulations indicate that risk-sharing creates most consumer welfare, followed by regimes with fully distributed costs, regulatory holiday and long run incremental costs, respectively. Risk-sharing benefits consumers as it combines relatively high ex-ante investment incentives with strong ex-post competitive intensity.     

Will they buy it? The potential for marketing organic vegetables in the food vending sector to strengthen vegetable safety: A choice experiment study in three West African cities

Considering the hazardous use of synthetic pesticides in vegetable production in urban West Africa, this research investigated the marketing potential of organic vegetables in the food vending sector of Cotonou (Benin), Accra (Ghana) and Ouagadougou (Burkina Faso). Certified organic production and marketing was examined as a potential strategy to improve chemical food safety. A stratified random sampling strategy was applied to study the preferences of food vendors (n = 180) and consumers (n = 360); vegetable use, risk perception, choice preferences and willingness-to-pay (WTP) for organic certification were specifically analyzed. The results showed that awareness of chemical contamination risks was generally low. Appearance of a product was central to vendor choice; consumers attributed similar utility to taste and organic certification. Consumer WTP was calculated to be a premium of 1.04 USD (per plate) if the food served contained only certified organic vegetables. In restaurants, this would mean an average premium of 19% for a meal. If certified organic vegetable production is to make a positive impact on food safety in urban West Africa, we suggest concentrating marketing efforts on the educated “elite” who frequent restaurants. However, considering that restaurant owners exhibited a lower preference for organic certification than lower class food vendors, the marketing situation is difficult. We therefore conclude that demand from the food vending sector alone will not institutionalize domestic certification mechanisms; this underlines the need for public commitment to facilitating such change.     

THE NORMALIZED CES PRODUCTION FUNCTION: THEORY AND EMPIRICS

Abstract The elasticity of substitution between capital and labor and, in turn, the direction of technical change are critical parameters in many fields of economics. Until recently, though, the application of production functions with specifically non‐unitary substitution elasticities (i.e., non‐Cobb–Douglas) was hampered by empirical and theoretical uncertainties. As recently revealed, ‘normalization’ of production‐technology systems holds out the promise of resolving many of those uncertainties. We survey and assess the intrinsic links between production (as conceptualized in a production function), factor substitution (as made most explicit in Constant Elasticity of Substitution functions) and normalization (defined by the fixing of baseline values for relevant variables). First, we recall how the normalized Constant Elasticity of Substitution function came into existence and what normalization implies for its formal properties. Then we deal with the key role of normalization in recent advances in the theory of business cycles and of economic growth. Next, we discuss the benefits normalization brings for empirical estimation and empirical growth research. Finally, we identify promising areas of future research.     

New Technologies and International Locational Choice for Research and Development Units: Evidence from Europe

This study examines the factors governing the decision to locate new research and development facilities at locations distant from company headquarters. The 20 firms surveyed are German, Swiss, Dutch, Japanese and Finnish multinationals. Development laboratories, it was found, followed the established pattern of being located away from headquarters only when distant markets attain a critical size. For research laboratories, however, the decisive factor in all cases is a desire to tap into the expertise developing in 'centres of competence' such as the American Northeast in biotechnology. This factor only operates when the new technology is otherwise unfamiliar to the investing company. This factor overrides the conventional wish to minimize the costs of internal and external communications.     

Targeting Aid to the Needy and Deserving: Nothing But Promises?

By reallocating aid to where it is needed most and where a productive use is most likely, donors could help alleviate poverty in developing countries. The rhetoric of donors suggests that this insight has increasingly shaped the allocation of aid. We assess the poverty and policy orientation of bilateral and multilateral aid in different ways. In addition to presenting stylised facts based on bivariate correlations, we apply a Tobit model that captures both altruistic and selfish donor motives. We find little evidence supporting the view that the targeting of aid has improved significantly. Most donors provide higher aid to relatively poor countries, but so far the fight against poverty has not resulted in a stronger focus on needy recipients with favourable local conditions. The estimation results reveal that the policy orientation of aid critically depends on how local conditions are measured. In general, however, donors appear to be less policy‐oriented than poverty‐oriented. The response of donors to changing institutional and policy conditions in recipient countries turns out to be fairly weak. We reject the proposition that multilateral aid is clearly superior to bilateral aid in terms of rewarding poor countries with better policies and institutions.