Regional versus global production networks: where does Latin America stand?

This article quantifies the effects of the Latin American Integration Association (LAIA) and the Southern Common Market (Mercosur) on the trade of intermediate goods and also on the trade of final goods. It is the first article to investigate whether increasing imports of intermediate goods from different regions to Latin America have led to higher exports of final and intermediate goods. The article uses sectoral data for trade in goods between 11 LAIA members over the period 1991–2008. The main results indicate evidence of increasing regional production networks, which have strengthened in the 2000s. Moreover, the findings show evidence of the emergence of global production networks, especially with respect to intermediate imports from China.     

Deployment of high-speed broadband infrastructures during the economic crisis. The case of Xarxa Oberta

The deployment of fibre based Next Generation Access Networks (NGANs) entails a crisis dilemma. During crisis, public administrations are eager to actively impulse investment in NGANs since the deployment of these networks may increase productivity in the long run and promote economic recovery in the short run. However, the crisis has reduced the access to the credit market and has increased the fiscal deficit. Consequently, the resources of the public sector to invest have been severely limited. Thus, it is crucial to analyse how the public investment plans in NGANs should be designed and implemented during bad times, under scarcity of public resources. The article proposes some guidelines for the design and implementation of effective and affordable public projects for the deployment of NGANs. These guidelines are illustrated by discussing the Xarxa Oberta case, a project for the deployment of a NGAN in Catalonia (Spain).     

Systemic risk measures: The simpler the better?

This paper estimates and compares two groups of high-frequency market-based systemic risk measures using European and US interbank rates, stock prices and credit derivatives data from 2004 to 2009. Measures belonging to the macro group gauge the overall tension in the financial sector and micro group measures rely on individual institution information to extract joint distress. We rank the measures using three criteria: (i) Granger causality tests, (ii) Gonzalo and Granger metric, and (iii) correlation with an index of systemic events and policy actions. We find that the best systemic measure in the macro group is the first principal component of a portfolio of Credit Default Swap (CDS) spreads whereas the best measure in the micro group is the multivariate densities computed from CDS spreads. These results suggest that the measures based on CDSs outperform measures based on interbank rates or stock market prices.     

Walrasian analysis via two-player games

We associate to any pure exchange economy a game with only two players, regardless of the number of consumers. In this two-player game, each player represents a different role of the society, formed by all the individuals in the economy. Player 1 selects feasible allocations trying to make Pareto improvements. Player 2 chooses an alternative from the wider range of allocations that are feasible in the sense of Aubin. The set of Nash equilibria of our game is non-empty and our main result provides a characterization of Walrasian equilibria allocations as strong Nash equilibria of the associated society game.     

The role of mediation in peacemaking and peacekeeping negotiations

We develop a model of bargaining that provides a rationale for the difference in the method of negotiation, depending on the nature of the conflict. We distinguish those negotiations that take place previous to a potential conflict (peacekeeping), and negotiations inside the conflict (peacemaking). In these contexts, we study the role of a mediator who tries to achieve a certain balance between the efficiency of the agreement and the equality of the final sharing. We show that the credibility of the mediator comes from her willingness to impose delays in the negotiation, even if that implies costs. We also find how the player with a “weak” bargaining position in a conflict can strategically profit from the mediator's quest for equality. Finally, we show how the capacity of the mediator to induce a higher equality in the sharing is always higher in a peacemaking situation than in a peacekeeping one.     

FREEDOM OF CHOICE AND WEIGHTED MONOTONICITY OF POWER

The paper discusses the substitution of mergeability by the weighted monotonicity property in the definition of the Public Good Index. The cardinality of sets, implicit to the measurement of power, can thus be related to comparing sets and relations of counting and set inclusion. This allows for the application of results from the measurement of power to the specification of freedom of choice and thereby to connect the ‘world of agents’ with the ‘world of opportunities’. The relationship between weighted monotonicity and constrained monotonicity is specified.     

Which are the drivers of fixed to mobile telephone access substitution? An empirical study of the Spanish residential market

Using household panel data for the period 2004 to 2009, the percentage of households that engage in fixed to mobile access substitution in Spain is quantified. This turns out to be small: on average 0.35% per quarter (range: 0.02% to 0.79%). Then the drivers of households to substitute are analysed, finding out that the availability of Internet and mobile services previous to the substitution decision and the socio-demographic characteristics of households, such as age, play a more prominent and significant role in explaining fixed to mobile access substitution when compared to other aspects such as the degree and types of expenditure on fixed services.     

Audit quality and the going-concern decision-making process: Spanish evidence

In this study, we attempt empirically to investigate the relationship between audit quality and the probability that a financially distressed company would receive a going-concern opinion. Auditor decision-making in the presence of going-concern uncertainties may be characterized as a two-stage process. The first stage is the identification of a potential going-concern problem and the second stage is to determine whether the particular company should receive a qualified going-concern opinion. A sample of 1,199 non-financial Spanish company-years has been obtained from the database issued by the Stock Exchange National Commission for the fiscal years ending between December 1991 and December 2000. The results indicate that audit quality (measured by the auditor's level of independence and knowledge) affects the probability that a financially distressed company would receive a going-concern opinion. This probability is influenced not only by the auditor's ability to detect financial uncertainties, but also by the auditor's decision-making as to what type of opinion should be finally issued.     

Do natural resources define convergence clubs? Empirical evidence from the Kazakh regions

This paper deals with the hypothesis that natural resources are important in forming convergence clubs. We check this hypothesis by applying a dependence and an endowment measure of natural resource abundance and a regression tree analysis. The results indicate that for the Kazakh regions natural resources do indeed play an important role in forming convergence clubs. It is further shown that natural resource endowment rather than resource dependence determines initial conditions and thereby convergence clubs.     

Adapting football to the child: an application of the logistic regression model in observational methodology

Logistic regression is included into the analysis techniques which are valid for observational methodology. However, its presence at the heart of this methodology, and more specifically in physical activity and sports studies, is scarce. With a view to highlighting the possibilities this technique offers within the scope of observational methodology applied to physical activity and sports, an application of the logistic regression model is presented. The model is applied in the context of an observational design which aims to determine, from the analysis of use of the playing area, which football discipline (7 a side football, 9 a side football or 11 a side football) is best adapted to the child’s possibilities. A multiple logistic regression model can provide an effective prognosis regarding the probability of a move being successful (reaching the opposing goal area) depending on the sector in which the move commenced and the football discipline which is being played.