Ecological Footprint Inequality: A methodological review and some results

Scarcities of environmental services are no longer merely a remote hypothesis. Consequently, analysis of their inequalities between nations becomes of paramount importance for the achievement of sustainability in terms either of international policy, or of Universalist ethical principles of equity. This paper aims, on the one hand, at revising methodological aspects of the inequality measurement of certain environmental data and, on the other, at extending the scarce empirical evidence relating to the international distribution of Ecological Footprint (EF), by using a longer EF time series. Most of the techniques currently important in the literature are revised and then tested on EF data with interesting results. We look in depth at Lorenz dominance analyses and consider the underlying properties of different inequality indices. Those indices which fit best with environmental inequality measurements are CV2 and GE(2) because of their neutrality property, however a trade-off may occur when subgroup decompositions are performed. A weighting factor decomposition method is proposed in order to isolate weighting factor changes in inequality growth rates. Finally, the only non-ambiguous way of decomposing inequality by source is the natural decomposition of CV2, which additionally allows the interpretation of marginal term contributions. Empirically, this paper contributes to the environmental inequality measurement of EF: this inequality has been quite stable and its change over time is due to per capita vector changes rather than population changes. Almost the entirety of the EF inequality is explainable by differences in the means between the countries of the World Bank group. This finding suggests that international environmental agreements should be attempted on a regional basis in an attempt to achieve greater consensus between the parties involved. Additionally, source decomposition warns of the dangers of confining CO2 emissions reduction to crop-based energies because of the implications for basic needs satisfaction.

Profitability, uncertainty and multi-product firm product proliferation: The Spanish car industry

This article studies how product introduction decisions relate to profitability and uncertainty in the context of multi-product firms and product differentiation. These two features, common to many modern industries, have not received much attention in the literature as compared to the classical problem of firm entry, even if the determinants of firm and product entry are quite different. The theoretical predictions about the sign of the impact of uncertainty on product entry are not conclusive. Therefore, an econometric model relating firms’ product introduction decisions with profitability and profit uncertainty is proposed. Firm’s estimated profits are obtained from a structural model of product demand and supply, and uncertainty is proxied by profits’ variance. The empirical analysis is carried out using data on the Spanish car industry for the period 1990-2000. The results show a positive relationship between product introduction and profitability, and a negative one with respect to profit variability. Interestingly, the degree of uncertainty appears to be a driving force of entry stronger than profitability, suggesting that the product proliferation process in the Spanish car market may have been mainly a consequence of lower uncertainty rather than the result of having a more profitable market

Tot el poder als joves! : els consells de joves com a instruments de participació ciutadana en temps de crisi globalitzada i d'exclusió social de la joventut

En una època de transformacions vertiginoses que han situat les generacions joves en una situació d'exclusió social, política, econòmica i simbòlica, les polítiques de joventut han d'esdevenir un revulsiu per a l'aprenentatge i la normalització de la ciutadania activa, dins un ampli programa de reforma social orientat a la recuperació de l'Estat del benestar i de la iniciativa política per part d'unes institucions refundades sobre nocions de democràcia participativa. En aquest context, el moviment associatiu juvenil és una expressió genuïna d'apoderament, participació autònoma i capacitat d'anàlisi que pot tenir un paper protagonista, amb l'extensió del model de consells de joves arreu del territori com a espais de deliberació, decisió i participació democràtica

New stakeholders, spaces and instruments of analysis in the context of energy relationships: Case studies from Kazakhstan and Turkmenistan

The disintegration of the USSR brought the emergence of a new geo-energy space in Central Asia. This space arose in the context of a global energy transition, which began in the late 1970s. Therefore, this new space in a changing energy world requires both new conceptual frameworks of analysis and the creation of new analytical tools. Taking into account this fact, our paper attempts to apply the theoretical framework of the Global Commodity Chain (GCC) to the case of natural resources in Central Asia. The aim of the paper is to check if there could be any Central Asia’s geo-energy space, assuming that this space would exist if natural resources were managed with regional criteria. The paper is divided into four sections. First an introduction that describes the new global energy context within natural resources of Central Asia would be integrated. Secondly, the paper justifies why the GCC methodology is suitable for the study of the value chains of energy products. Thirdly, we build up three cases studies (oil and uranium from Kazakhstan and gas from Turkmenistan) which reveal a high degree of uncertainty over the direction these chains will take. Finally, we present the conclusions of this study that state that the most plausible scenario would be the integration of energy resources of these countries in GCC where the core of the decision-making process will be far away from the region of Central Asia. Key words: Energy transition, geo-energy space, Global Commodity Chains, Central Asia

Agriculture, technological change and environmental sustainability: Looking for a win-win water policy strategy

This paper analyses the effects that technological changes in agriculture would have on environmental, social and economic indicators. Specifically, our study is focused on two alternative technological improvements: the modernization of water transportation systems versus the increase in the total factor productivity of agriculture. Using a computable general equilibrium model for the Catalan economy, our results suggest that a water policy that leads to greater economic efficiency is not necessarily optimal if we consider social or environmental criteria. Moreover, improving environmental sustainability depends less on the type of technological change than on the institutional framework in which technological change occurs. Keywords: agricultural technological changes, computable general equilibrium model, economic impact, water policy

La industria de los PCs en los mercados del continente americano: estimación de demanda y poder de mercado

Esta investigación aporta una visión panorámica del escenario competitivo de la industria de los PCs en los mercados del continente americano con mayor volumen de ventas. En él se describen los cambios producidos por el proceso de migración hacia la portabilidad que caracterizó el período 2005 - 2007. A partir de la estimación de un modelo de elección discreta Logit con coeficientes aleatorios, se recuperan los costes marginales a nivel de producto. A su vez, se desarrolla un análisis regional del ejercicio de poder de mercado por grupos de marcas basado en el Índice de Lerner, que revela que los cambios observados fueron gobernados principalmente por variaciones en la elasticidad-precio de la demanda. En particular, la incorporación de consumidores con una mayor elasticidad en el fragmento de portátiles en Latinoamérica podría explicar bajos niveles de poder de mercado (márgenes) en un contexto de precios a la baja y aumento de la demanda. Palabras clave: productos diferenciados, demanda, oligopolio, poder de mercado, Índice de Lerner, Logit con coeficientes aleatorios, PC. JEL: D12, F23, L13, L63.

Estimación del impacto sobre precios de la fusión Acer- Gateway y de su anuncio en América del Norte

Esta investigación representa una contribución a la literatura sobre el análisis retrospectivo de las fusiones. Su principal objetivo es la evaluación del impacto de la fusión entre Acer y Gateway, concretada a mediados de octubre de 2007 y que permitió a estas dos firmas convertirse en el tercer proveedor mundial de ordenadores personales. En particular, se examinan los efectos que durante el período previo e inmediatamente posterior a la fusión se produjeron sobre los precios de los productos. Para ello, se aplica el método de diferencias-endiferencias, utilizando como grupo de control el conjunto de mercados americanos con mayor volumen de ventas en los previamente las empresas fusionadas no competían. Los resultados obtenidos apuntan a la existencia de un comportamiento anticompetitivo que se habría manifestado en Norteamérica antes de que la fusión se completara. Palabras clave: fusión, ordenadores personales, canibalización, diferencias-endiferencias, análisis retrospectivo. JEL: L13, L41, L42, L81.

Les Polítiques Econòmiques en la UEM, un Poder de Decisió Dividit

Aquest treball de recerca pretén analitzar les conseqüències de tenir el poder de decisió separat entre la política fiscal i la política monetària en la UEM. Alguns autors han anomenat aquest fet com el pecat original de l’eurozona, considerant que aquesta àrea monetària ha patit un error de disseny des d’un bon principi1. El creixement econòmic d’alguns EM, ha amagat aquesta dialèctica constant, retardant la decisió entre les Institucions Europees i els EM eternament, fins a tal punt que la recessió econòmica actual ha evidenciat la necessitat de coordinació entre aquestes dues polítiques econòmiques i s’ha començat a instrumentalitzar nous mecanismes per millorar l’estructura actual

Ideas, Possibilities and Limitations of Sustainable Economic Policy – the Example of Ecological Economics

A mesura que el suport del creixement econòmic constitueix un objectiu fonamental de la formulació de polítiques econòmiques, cal assenyalar que aquest tipus de creixement està limitat naturalment per un planeta finit. Aquest article argumenta que, des del punt de vista de la justícia intergeneracional, la realització d'un concepte de desmaterialització i, com a efecte, d'una economia que no creix (en el sentit de dissociació absoluta del creixement econòmic i consum d'energia i materials) es pot justificar. Per tant, el creixement pot ser també entesa com la millora de la qualitat de vida sobretot en comptes d'ampliar quantitats escarpats de sortida. Per tant, una dràstica reducció del cabal de material es necessita, sobretot en els països d'alts ingressos. Després de presentar alguns crítica de les propostes, en el focus d'aquest article es dibuixen en els arguments de per què la política econòmica en el futur han de ser etiquetats com "ecològic" i, a continuació, les opcions de posar en acció les idees del teòric presentat marc en tasques manejables polítiques seran discutides. En aquest cas, s'argumentarà que l'enfocament clàssic de internalització d'efectes externs sovint seguides de decisions de política econòmica ortodoxa no és completament capaç de reflectir canvis ecològics en les estructures de preus dels mercats. Per tant, formal (industrial i l'establiment de la política de consum) i institucions informals (llars) representen punts clau de la política econòmica sostenible, assenyalant l'individu com així com la responsabilitat col · lectiva per omplir aquest buit substancial.

Alternation and Cooperation in a Two-party System: Implications for Resource-Based Developing Economies

This paper studies cooperation in a political system dominated by two opportunistic parties competing in a resource-based economy. Since a binding agreement as an external solution might be difficult to enforce due to the close association between the incumbent party and the government, the paper explores the extent to which co-operation between political parties that alternate in office can rely on self-enforcing strategies to provide an internal solution. We show that, for appropriate values of the probability of re-election and the discount factor cooperation in maintaining the value of a state variable is possible, but fragile. Another result is that, in such political framework, debt decisions contain an externality element linked to electoral incentives that creates a bias towards excessive borrowing.

The Farm, the city, and the emergence of social security

We study the social, demographic and economic origins of social security. The data for the U.S. and for a cross section of countries suggest that urbanization and industrialization are associated with the rise of social insurance. We describe an OLG model in which demographics, technology, and social security are linked together in a political economy equilibrium. In the model economy, there are two locations (sectors), the farm (agricultural) and the city (industrial) and the decision to migrate from rural to urban locations is endogenous and linked to productivity differences between the two locations and survival probabilities. Farmers rely on land inheritance for their old age and do not support a pay-as-you-go social security system. With structural change, people migrate to the city, the land loses its importance and support for social security arises. We show that a calibrated version of this economy, where social security taxes are determined by majority voting, is consistent with the historical transformation in the United States.

El Procés d'elaboració de l'enquesta pública prèvia al Pla Comarcal de Muntanya de la Garrotxa

According to the Law regulating Mountainous Areas passed by the Catalan Parliament (211983 dated 9th March), the Regional Mountain Plan (Pla Comarcal de Muntanya) is defined as the basic instrument for the development of and policy application in mountainous areas. Consequently, other measures contemplated in the same law are subordinate to the Plan. The mentioned law is to be enforced in nine regions in Northern Catalonia, one of which is the Garrotxa district

Airline Consolidation and the Distribution of Traffic between Primary and Secondary Hubs

Several airline consolidation events have recently been completed both in Europe and in the United States. The model we develop considers two airlines operating hub-and-spoke networks, using different hubs to connect the same spoke airports. We assume the airlines to be vertically differentiated, which allows us to distinguish between primary and secondary hubs. We conclude that this differentiation in air services becomes more accentuated after consolidation, with an increased number of flights being channeled through the primary hub. However, congestion can act as a brake on the concentration of flight frequency in the primary hub following consolidation. Our empirical application involves an analysis of Delta s network following its merger with Northwest. We find evidence consistent with an increase in the importance of Delta s primary hubs at the expense of its secondary airports. We also find some evidence suggesting that the carrier chooses to divert traffic away from those hub airports that were more prone to delays prior to the merger, in particular New York s JFK airport. Keywords: primary hub; secondary hub; airport congestion; airline consolidation; airline networks JEL Classi fication Numbers: D43; L13; L40; L93; R4

Airport Congestion and Airline Network Structure

This paper provides a theoretical and empirical analysis of the relationship between airport congestion and airline network structure. We find that the development of hub-and-spoke (HS) networks may have detrimental effects on social welfare in presence of airport congestion. The theoretical analysis shows that, although airline pro ts are typically higher under HS networks, congestion could create incentives for airlines to adopt fully-connected (FC) networks. However, the welfare analysis leads to the conclusion that airlines may have an inefficient bias towards HS networks. In line with the theoretical analysis, our empirical results show that network airlines are weakly infl uenced by congestion in their choice of frequencies from/to their hub airports. Consistently with this result, we con firm that delays are higher in hub airports controlling for concentration and airport size. Keywords: airlines; airport congestion; fully-connected networks, hub-and-spoke net- works; network efficiency JEL Classifi cation Numbers: L13; L2; L93