Exports and Productivity Selection Effects for Dutch Firms

The paper tests whether recent theories of international trade with heterogeneous firms can explain the export patterns in Dutch firm- and plant- level data in manufacturing and services. Recent trade models with heterogeneous firms predict that the export decision of firms is affected by sunk entry costs in foreign markets, with only the most productive firms self-selecting into exports. We test a latent variable model of the export decision by probit regressions and standard OLS panel regressions. Our results support the self-selection prediction. The process further appears to be conditioned by scale effects, market structure and multinational affiliation. Regarding alternative explanations, we do not find evidence for the learning-by-exporting hypothesis, even when controlling for the firm’s distance to the international productivity frontier.     

On the Contemporary Commodity Structure of World Trade Patterns: An Empirical Assessment

For about 150 years, international trade theory has mostly highlighted trade in consumption goods. Such a modeling approach was likely supported by the then prevailing commodity structure of world trade. This paper shows that – at least since 1970 – only about 20 per cent of commodity trade has taken place in consumables, the remainder being intermediates and capital goods. Theoretically, this evidence suggests a move in the modelling strategy for traded goods: from utility functions to production functions. Sanyal and Jones' "new trade theory" (1982) does precisely that. In addition, some crucial research challenges emerge. These relate to dynamic changes in some general characteristics of production technologies throughout the world.     

An analysis of growth competitiveness

The publication of the Global Competitiveness Report 2005‐2006 by the World Economic Forum (WEF) (2005 World Economic Forum. 2005. The global competitiveness report, 2005–2006, Hampshire: Palgrave MacMillan.  [Google Scholar]) has focused attention once more upon the relative abilities of many countries to compete in world markets. This article provides an analysis and evaluation of the approach taken by the WEF in constructing its measure of international growth competitiveness, the Growth Competitiveness Index (GCI) which is used to rank countries. In particular, the study identifies three areas where the GCI is vulnerable to criticism. First, the treatment of outliers for hard data items is ambiguous and we identify alternative methods for dealing with outliers that are justifiable or even superior. Second, the crucial role of the variable utility patents in the calculation of the GCI is questioned and serious doubts concerning the use of this variable are raised. Third, the article suggests an alternative approach, based upon structural equation modeling, which should be used for the determination of weights in the index calculation process, rather than the arbitrary method adopted by the WEF.     

Individual Transferable Quota Markets under Illegal Fishing

The use of individual transferable quotas in fisheries has been considered an opportunity to achieve a given total allowable catch with a maximum social benefit. One of the assumptions used in obtaining that result is that the system is in perfect compliance. The presence of violations and the need for enforcement of tradable property rights systems in fisheries has not received much attention in the literature. The incidents of non-compliance, however, may affect the performance of transferable property rights-based fisheries in unexplored ways. In this paper, we adapt previous literature on enforcing emissions trading programs to analyze a positive model of fisherman behavior that operates under a perfectly competitive individual transferable quota system, while recognizing the opportunities for violations of quota holdings, given incomplete enforcement. Considering a poorly enforced, individual transferable quota system we are able to obtain a number of implications for the current and future equilibrium of the quota market, the time paths of the fishery, and the proper design of a policy rule on total allowable catch (TAC).     

Shared Sectoral Growth Versus the Dual Economy Model: Evidence from Côte d'Ivoire,Ghana, and Zimbabwe

Abstract: Though recently challenged, the dual economy view has affected development economics and development policy, either explicitly or implicitly, for more than half a century. According to this view, agriculture merely serves to build the industrial sector — in particular, agriculture has no role as an engine of growth in the long term. Examining agriculture, industry and service sector growth in Côte d'Ivoire, Ghana, and Zimbabwe over more than three decades, we find little empirical support for this view. On the contrary, our analyses find a large degree of interdependence in long‐run sectoral growth, implying that the sectors ‘grow together’ or, similarly, that there are externalities or spillovers between sectors. Policy implications are also discussed; these include directing more attention towards the interdependencies in sectoral growth broadly defined. In particular, our findings have implications for the design of education and health programs, as well. This improved understanding of inter‐sectoral dynamics at all levels may facilitate policy implementation aimed at increasing economic growth — and thereby ultimately improving peoples' livelihoods — in Africa and elsewhere.     

A meta-analysis of community-based studies on quality protein maize

Biofortification, or the improvement of nutritional quality in food crops, is a promising strategy to combat undernutrition, particularly among the rural poor in developing countries. However, traditional methods of impact assessment are inadequate for biofortified crops, as they do not consider their nutritional benefits. Evidence for the nutritional impact of maize varieties with improved protein quality, collectively known as quality protein maize (QPM), was evaluated using meta-analysis of randomized, controlled studies in target communities. A new and generalizable effect size was proposed to quantify the impact of QPM on a key outcome, child growth. The results indicated that consumption of QPM instead of conventional maize leads to a 12% (95% CI: 7–18%) increase in the rate of growth in weight and a 9% (95% CI: 6–15%) increase in the rate of growth in height in infants and young children with mild to moderate undernutrition from populations in which maize is the major staple food. The proposed effect size and use of bootstrapping to determine statistical significance addressed some methodological limitations in the existing studies.     

Improving the Performance of a Long‐Run Variance Ratio Test for a Unit Root

Cai and Shintani (2006, Econometric Theory, 22, 347–372) considered the impact of introducing an inconsistent long‐run variance estimator when constructing a class of kernel‐based ratio tests for testing non‐stationarity in the series. They found that the quotient of two estimators with different rates of convergence under the null and the alternative hypotheses may lead to a test having an interesting size and power trade‐off. This paper develops modified versions of this test, presents new asymptotic results and tabulates critical values. The finite sample performance is explored through Monte Carlo simulations. The results show that the modifications proposed lead to more powerful unit root tests.