Impact of cultured shrimp industry on wild shrimp fisheries: analysis of price determination mechanisms and market dynamics

Cultured shrimp production has been growing dramatically on the world market over the last 15 years and some of the farm‐raised species are now considered as price‐indicators on the main market places. One may, therefore, expect the price of theses cultured shrimp to have an impact on the price formation of other species and especially on wild shrimp with which they compete. In this paper, the authors address this question in the case of the wild shrimp Penaeus subtilis exploited by the French Guyana fishery (South America) and competing on the French market with the cultured Thai shrimp ‘Back Tiger’. A series of econometric tests issued from the co‐integration theory is performed between the price series of the two products. These tests indicate that the two series are co‐integrated and that the black tiger market acts as a market leader for the French Guyana shrimp product. The authors then discuss the reasons of the current predominance of farm‐raised shrimp on wild‐caught product (and in particular the French Guyana shrimp) and identify the constraints that the French market demand induces on both producers and importers. In the light of this analysis, a commercial strategy that would mitigate the impact of the Thai shrimp on the French Guyana product is suggested.     

An Economic Evaluation of Model Risk in Long‐term Asset Allocations

Following the recent crisis and the revealed weakness of risk management practices, regulators of developed markets have recommended that financial institutions assess model risk. Standard risk measures, such as the value‐at‐risk (VaR), emerged during the 1990s as the industry standard for risk management and become today a key tool for asset allocation. This paper illustrates and estimates model risk, and focuses on the evaluation of its impact on optimal portfolios at various time horizons. Based on a long sample of US data, the paper finds a non‐linear relation between VaR model errors and the horizon that impacts optimal asset allocations.     

Sensitive products in the Doha negotiations: The case of European and Japanese market access

Given the highly concentrated distribution of agricultural protection, allowing in the negotiations too many exceptions through sensitive products puts at risk the objectives of World Trade Organization. This issue is difficult to analyze with the commonly used applied trade models, because they represent trade flows at an aggregate level, while sensitive products are picked at the product level and their protection, under the form of tariff-rate quotas, is contingent on the level of imports. This paper assesses the effect of these exceptions, based on the case of agricultural trade protection in Europe and Japan, two countries where tariff dismantling in the agricultural sector is a particularly sensitive issue. Since agricultural border protection is heterogeneous, we avoid aggregation bias by extending a multi-country computable general equilibrium model to the product level. This allows us to represent trade policies explicitly and to account for their interdependencies. The results suggest that consideration of sensitive products strongly limits the potential gains from a possible agriculture agreement at Doha. Moreover, there is no aggregate trade-off between decreasing tariffs and increasing/opening quotas. To achieve “substantial” market access improvements in the agricultural sector, the objective should be most favored nation tariff reduction.     

The cyclical impact of EU cohesion policy in fast growing EU countries

Most of the newly acceded central and east European EU countries are among the main beneficiaries of EU Cohesion Policy. The main objective of this policy is to improve the long-term growth and employment prospects of the supported regions, and thereby to support convergence towards higher levels of per capita income. In the short run, however, EU Cohesion Policy may at times amplify macroeconomic challenges for supported countries. In periods of a downturn of the economy it can have a stabilising impact. During periods of unsustainably fast economic growth, however, its short-term demand effects may contribute to internal and/or external macroeconomic imbalances. Economic policymakers should thus ensure that EU Cohesion Policy enhances long-term productivity, while avoiding, in times of overheating, an increased risk of unsustainable developments as a result of the additional demand stimulus from EU Cohesion Policy. The opinions expressed in this article are those of the authors and do not necessarily reflect those of the European Central Bank. The authors are grateful to Martin Bijsterbosch, Gesa Miehe-Nordmeyer, Ad van Riet, Philipp Rother and Desom Weller for their helpful comments.     

A re-examination of the technological catching-up hypothesis across OECD industries

This study re-examines the catching-up hypothesis at the industry level across the main OECD countries, using panel data econometric models involving technological gap indicators calculated with a nonparametric distance function suggested by Färe et al. [Färe, R.S., Grosskopf, M.N., Norris, M., Xhang, Z., 1994. Productivity growth, technical progress, and efficiency change in industrialized countries. American Economic Review 84, 66–83]. The results show that there is statistical evidence of a catching-up process at the industry level. Moreover, both tradables and nontradables sectors exhibit catching-up effects and technology adoption from abroad. This result complements the findings by Bernard and Jones [Bernard, A.B., Jones, C.I., 1996a. Comparing apples to oranges: productivity convergence and measurement across industries and countries. American Economic Review 86(5), 1216–1238., Bernard, A.B., Jones, C.I., 1996b. Productivity across industries and countries: Time series theory and evidence. Review Of Economics and Statistics 78, 135–146], Gouyette and Perelman [Gouyette, C., Perelman, S., 1997. Productivity convergence in OECD services industries. Structural Change and Economic Dynamics 8, 279–295] and Hansson and Henrekson [Hansson, P., Henrekson, M., 1997. Catching up, social capability, government size and economic growth, in V. Bergström, eds, Government and Growth, Oxford: Clarendon Press, 61–126] that there is no (or even a slow) catching-up effect in the manufacturing sector. Moreover, social capability indicators evaluated for each country show that “Non-European” and “Central European” tradables sectors have a rather similar degree of inefficiency while “North European” countries are less efficient for both tradables and non-tradables. Lastly, both the cross country and the cross sectors dispersions of inefficiency levels are smaller for tradables sectors than for non-tradables.     

Exogeneity in Vector Error Correction Models with Purely Exogenous Long-Run Paths

Existing exogeneity conditions of literature are only sufficient and imply 'overly strong' constraints on long-run parameters. This paper presents some new results on exogeneity in vector error correction models. A key concept of the analysis is the 'purely exogenous long-run path', i.e. a cointegrating vector only including 'exogenous' variables. Extending earlier results of Johansen, S. (1992). 'Cointegration in partial systems and the efficiency of single-equation analysis', Journal of Econometrics , Vol. 52, pp. 389–402 and of Toda and Phillips (1991) . Vector Autoregressions and Causality , Cowles Foundation Discussion Paper, No. 977 among others, we propose a framework based on two canonical representations of the long-run matrix, which can constitute a suitable basis to formulate a necessary and sufficient condition for non-causality as well as a condition for strong exogeneity. An interesting property is that the statistics involved in the sequential procedures for testing these conditions are distributed as χ ² variables and can, therefore, easily be calculated with the usual statistical computer packages, which makes our approach fully operational, empirically. Finally, the power and size distortions of the sequential test procedures are analysed using Monte Carlo experiments.     

On the Construction of the European Economic Sentiment Indicator*

Economic sentiment surveys are carried out by all European Union member states and are often seen as early indicators for future economic developments. Based on these surveys, the European Commission constructs an aggregate European Economic Sentiment Indicator (ESI). This paper compares the ESI with more sophisticated aggregation schemes based on statistical methods: dynamic factor analysis and partial least squares. The indicator based on partial least squares clearly outperforms the other two indicators in terms of comovement with economic activity. In terms of forecast ability, the ESI, constructed in a rather ad hoc way, can compete with the other indicators.     

Demand for football and intramatch winning probability: an essay on the glorious uncertainty of sports

The aims of this study are (i) to identify the main determinants of the demand for French Premiere Division football matches using all matches played during the 1997/1998 season, (ii) to estimate a team-specific probability of success, and (iii) to propose an updating process for the intramatch winning probability. The methodology is tested empirically over an out-of-sample data set using matches of the 1998/1999 season. The results show that football appears to be an inferior product affected by both socio-economic and football variables, and that the main football variables have only a tenuous explanatory power concerning the final outcome of a given match.