Multiproduct Firms and Environmental Policy Coordination

The literature that analyzes the coordination of environmental taxes by governments considers that firms produce a single good at a single plant. However, in practice firms tend to produce several goods at various production plants (multiproduct firms). These firms may organize themselves in a centralized or decentralized fashion for purposes of decision-making: This affects their output and pollution levels. This paper sets out to analyze the coordination of environmental taxes considering multiproduct firms. We find that the organizational structure chosen by the owners of the firms depends on whether or not governments coordinate with one another in setting taxes, and on whether the goods produced are substitutes or complements. Social welfare is greater if a supranational authority sets taxes in all countries. In this case, joint welfare is never lower if the authority is constrained to set the same tax in all countries.     

An empirical characterization of the effects of public debt on economic growth

Based on a data set of 115 economies, this article empirically investigates the relation between public debt and economic growth. Using the World Bank’s classification for income groups, we initially find that those countries that present the lowest public debt are characterized by the highest economic growth, while the smallest growth rates are associated with the highest public debt. Nevertheless, this conclusion is tempered when we analyse the countries by income level: low-income countries have a different behaviour with respect to lower-middle, upper-middle and high-income countries. When using the IMF’s country classification, the results do not suggest a clear pattern in the public debt–economic growth nexus across different countries, but indicate a heterogeneous relationship between such key macroeconomic variables.     

Cointegration in Panel Data with Structural Breaks and Cross‐Section Dependence

The power of standard panel cointegration statistics may be affected by misspecification errors if structural breaks in the parameters generating the process are not considered. In addition, the presence of cross‐section dependence among the panel units can distort the empirical size of the statistics. We therefore design a testing procedure that allows for both structural breaks and cross‐section dependence when testing the null hypothesis of no cointegration. The paper proposes test statistics that can be used when one or both features are present. We illustrate our proposal by analysing the pass‐through of import prices on a sample of European countries. Copyright © 2013 John Wiley & Sons, Ltd.     

Research letter: Issues of cyber supply chain security in Korea

Cyber supply chain security is important for many businesses these days. In this paper, we investigate cyber supply chain (CSC) security issues in four Korea-based global companies (Samsung Electronics, Hyundai Motors, LG Electronics, and POSCO) with effective CSC security. No significant technological differences are evident between these companies and other global companies. Although most managers at all levels agree that security is important, security at Korea-based global companies tends to be the responsibility of non-executive managers. The well-established security policies in these companies are not always adequately enforced. Security in these Korean companies depends upon their relationships with the IT companies who develop and maintain the CSC. A balance between hierarchical integration and strategic outsourcing seems to be a unique advantage of Korean companies.     

Propuesta de un modelo de medición de la competitividad mediante análisis factorial

This article presents a proposal of a model to measure competitiveness at the three geographical levels simultaneously: country, states, and municipalities by using a multivariate factor analysis resulting in the identification of five factors, seven subfactors and thirty variables used to measure and to present the results of an empirical study of several entities: the country, the state of Sonora and nine municipalities that represent 80% of the population and 80% of its Total Gross Production (PBT). The results show that the municipality of Hermosillo was the most competitive in 2010.