A stochastic dominance approach to the measurement of discrimination

This note suggests a bridge between stochastic dominance (Rothschild and Stiglitz, 1970 [17], 1973 [18]), inequality measurement (Atkinson, 1970 [1]) and discrimination measurement (Gastwirth, 1975 [10]). Discrimination orderings are defined and illustrated through discrimination curves, in the same spirit as stochastic dominance analysis. The main result, which links the second order discrimination curve and the Gastwirth discrimination index, also generalizes the equivalence between Generalized Lorenz dominance and second order stochastic dominance.     

Are student flows a significant channel of R&D spillovers from the north to the south?

In global context, as human capital embodies technology, international student flows may channel R&D spillovers from developed countries to less developed ones. Empirical study on a data set of 76 developing countries during 1998–2005 lends strong support to this hypothesis.     

浅谈白音华三号露天矿非工作帮边坡稳定处理措施

对白音华三号露天煤矿的地质特征、水文条件进行分析总结。根据分析制定非工作帮的边坡处理措施。     

The Developmental Impact of Asian Drivers on Kenya with Emphasis on Textiles and Clothing Manufacturing

(1251) Paul Kamau with Dorothy McCormick and Nicolas Pinaud Kenya has enjoyed a relatively diversified economy (at least by SSA standards), with light manufacturing industries in particular playing a significant growing role. The rise of Asian competition (locally, regionally and on third‐country markets), partly due to the erosion of trade preferences for clothing and footwear, has raised fresh policy challenges. The specific relevance of the clothing industry in the analysis of China’s and India’s impact on Africa is manifold: this is a low‐skilled labour‐intensive industry, and hence an avenue for African economies’ diversification; the competition from Asian producers vis‐à‐vis the SSA clothing industry is felt at the local, regional and global level (on third‐country markets): it is therefore direct and indirect; also, the Asian Drivers’ impact on African clothing industries has both a trade and investment dimension while being competitive and complementary.     

Locked Up by a Lockup: Valuing Liquidity as a Real Option

Hedge funds often impose lockups and notice periods to limit the ability of investors to withdraw capital. We model the investor's decision to withdraw capital as a real option and treat lockups and notice periods as exercise restrictions. Our methodology incorporates time-varying probabilities of hedge fund failure and optimal early exercise. We estimate a two-year lockup with a three-month notice period costs approximately 1% of the initial investment for an investor with constant relative risk aversion utility and risk aversion of three. The cost of illiquidity can easily exceed 10% if the hedge fund manager can arbitrarily suspend withdrawals.     

On the incidence of commissions in auction markets

We analyze the welfare consequences of an increase in the commissions charged by intermediaries in auction markets. Commissions are similar to taxes imposed on buyers and sellers, and standard economics suggests that both sellers and buyers are made worse off by the tax. However, we show that when the buyers' participation constraint binds and when sellers set optimal reservation prices, the level of commissions correlates to participation and reservation prices in such a way that participating buyers strictly gain from higher commissions.     

The nature of informal food bazaars: Empirical results for Urban Hanoi,Vietnam

This paper aims to study the interesting phenomenon of informal food markets in urban areas, which have been neglected in the past research. Based on an empirical study of consumer choice between informal and formal markets (markets built-up by street hawkers vs. government-planned markets), this paper provides a basis for understanding the nature of informal markets in the Vietnamese context. The results show that cheap price and convenience (proximity) are important in shaping the choice by consumers for informal markets for food, while close relationship with sellers or services provided by sellers are not. Shoppers with higher concern for freshness and safety of fresh food are more likely to shop at formal markets. Additionally, low-income shoppers are found significantly inclined toward informal markets, while higher-income shoppers tend to shop at formal markets. Therefore, these two types of market should be viewed as two marketplaces to serve two segments of consumer groups, rather than two markets competing for a share of the business.     

Towards a New Trade Policy Between the USA and Middle‐East Countries:Estimating Trade Resistance and Export Potential

At the time of the conclusion of free trade areas (FTAs) between the USA and Middle‐East and North African (MENA) countries, there is a lack of literature concerning the measurement of the current US export position with regards to these countries, and the US export potential in this area. From recent developments of gravity models, this paper derives an estimable equation which includes various trade resistance variables, notably border effects, multilateral resistance as well as specific bilateral effects. The model is tested in order to scrutinise the impact of these variables on US exports to MENA countries, as well as the US export potential in this area. To that end, a selection of panel data specifications is proposed, mainly Hausman and Taylor models as well as Arellano and Bond dynamic models. Results unambiguously indicate that as compared to the other OECD countries, the USA suffers from a substantial trade integration deficit with MENA countries. This is reflected by the strongly negative values of the US‐MENA bilateral fixed effects, as well as the high bilateral border effects. In addition, the estimated actual/potential US export ratio to these countries is only 0.76. Therefore, implementing an FTA between the USA and MENA countries may allow the former to progressively improve its export position in this area. This would also help MENA countries diversify their supplying sources.