Valuación de opciones de tipo de cambio asumiendo distribuciones α-estables

This paper aims to present the valuation of options using the Black-Scholes method assuming α-stable distributions as an alternative option valuation in the Mexican market. The use of α-stable distributions for modelling financial series allows to overcome the classical valuation main weakness which assumes normality, by capturing the presence of heavy tails and asymmetry in financial time series. One of the main results is the price differential between the two models and the effect of alpha and beta parameters on prices; to show the difference valuation is made of a call option and a put option for the peso-dollar exchange rate. Likewise, basic sensitivity measurements of options (delta, gamma, and rho) were made and the effect of the stability parameter (α) was made on the implied volatility of options assuming the α-stable price as the market price.     

Modeling population dynamics and economic growth as competing species: An application to CO2 global emissions

Since the beginning of the last century the world is experiencing an important demographic transition, which will probably impact on economic growth. Many demographers and social scientists are trying to understand the key drivers of such transition as well as its profound implications. A correct understanding will help to predict other important trends of the world primary energy demand and the carbon emission to the atmosphere, which may be leading to an important climate change. This paper proposes a set of coupled differential equations to describe the changes of population, gross domestic product, primary energy consumption and carbon emissions, modeled as competing species as in Lotka-Volterra prey-predator relations. The predator-prey model is well known in the biological, ecological and environmental literature and has also been applied successfully in other fields. This model proposes a new and simple conceptual explanation of the interactions and feedbacks among the principal driving forces leading to the present transition. The estimated results for the temporal evolution of world population, gross domestic product, primary energy consumption and carbon emissions are calculated from year 1850 to year 2150. The calculated scenarios are in good agreement with common world data and projections for the next 100 years.     

THE (IR)RELEVANCE OF THE NRU FOR POLICY MAKING: THE CASE OF DENMARK

We reconsider the central role of the natural rate of unemployment (NRU) in forming policy decisions. We show that the unemployment rate does not gravitate towards the NRU due to frictional growth, a phenomenon that encapsulates the interplay between lagged adjustment processes and growth in dynamic labour market systems. We choose Denmark as the focal point of our empirical analysis and find that the NRU explains only 33% of the unemployment variation, while frictional growth accounts for the remaining 67%. Therefore, our theoretical and empirical findings raise doubts as to whether the NRU should play such a key instrumental role in policy making.     

Linking globalization of entrepreneurship in small organizations

The field of entrepreneurship spans a wide variety of topic areas, and among the most important is that of the small and medium-sized enterprise (SME). The aim of this paper is to link entrepreneurship and SMEs. Attempting to generalize the outcomes of entrepreneurship in small organizations from different sectors, countries or industries should be activities that are part of daily life on an international scale. In extracting and transferring the outcomes of this research into entrepreneurship and SMEs, policy makers should see an aspect that must be consolidated within the environment of international globalization that surrounds us. It should not be forgotten that what starts out as small (i.e. an SME) can become large over time and this entrepreneurship can form a part of a new organizational structure. A brief overview of the contents of each of the articles included in this special issue on the globalization of entrepreneurship in small organizations is also presented herein.      

Organizational environmental orientation and employee environmental in‐role behaviors: A cross‐level study

Amid the growth of scholarly research on environmental workplace behaviors, two limitations stand out. First, there has been scant research on the cross‐level effects of organizational‐level determinants on individual employee environmental behaviors using a methodologically appropriate multilevel analytic approach. Second, there has been an overwhelming focus on voluntary, as opposed to task‐related, employee environmentally friendly behaviors. In addressing these limitations, this field study (N = 615 U.S.‐based employees nested in 51 organizations) makes a theoretical and empirical contribution to the literature, specifically by linking the dimensions of organizational‐level environmental orientation with individual‐level employee environmental in‐role (i.e., task‐related) behaviors using multilevel analysis. The results indicate that organizational internal environmental orientation is positively related to employee recycling behavior. Managerial status exerts a moderating effect, such that the positive relationship between internal environmental orientation and energy‐saving behavior is stronger among managers than among non‐managers. Furthermore, an organization's external environmental orientation has an unequivocal positive relationship only with employee energy‐saving behavior. The theoretical and practical implications of the findings are discussed.     

Multinational Enterprises and New Trade Theory: Evidence for the Convergence Hypothesis

According to the 'convergence hypothesis' multinational companies will tend to displace national firms and trade as total market size increases and as countries converge in relative size, factor endowments, and production costs. Using a recent model developed by Markusen and Venables (1998) as a theoretical framework, we explicitly develop, and address the properties of, empirical measures to proxy displacement of national firms by multinationals. These measures are then used to test the convergence hypothesis for a panel of data of country pairs over the years 1985–1996. Our results based on aggregate country level data provide some empirical support for the convergence hypothesis.     

Institutional Pressures, Monopolistic Conditions and the Implementation of Early Cost Management Practices: The Case of the Royal Tobacco Factory of Seville (1820–1887)

In spite of our increasing understanding of the underpinnings of early cost management systems, little is still known about the reasons for the implementation of such systems in firms operating under monopolistic conditions. This article studies the enforcement by law of cost and budgeting systems in the Royal Tobacco Factory of Seville (Spain), a manufactory of the state-owned monopoly. By doing this, we seek both to enhance understanding of the state's motivation to enact institutional pressures aiming at the implementation of early cost management practices as well as to study different organizational responses to simultaneous pressures arising from a single institutional source. It is suggested that the state's motivation to legally enforce the implementation of early cost and budgeting systems may be attributed to (a) the seeking of legitimacy by the state regulatory body, (b) the active agency of senior employees of the state regulatory body to keep their jobs and compensation packages on the eve of the privatization of the industry, and (c) the interest of the regulatory agency to instil the basis of mimetic isomorphism within the monopoly. Different responses by the RTF to pressures for reporting cost and budgeting information were explained by (a) the expected diffusion of firm's non-conformity within the institutional area, (b) the expected impact of institutional rules and norms on organizational goals, and (c) the extent to which the institutional source is consistent in its demands.     

Dynamic discrete choice and dynamic treatment effects

This paper considers semiparametric identification of structural dynamic discrete choice models and models for dynamic treatment effects. Time to treatment and counterfactual outcomes associated with treatment times are jointly analyzed. We examine the implicit assumptions of the dynamic treatment model using the structural model as a benchmark. For the structural model we show the gains from using cross-equation restrictions connecting choices to associated measurements and outcomes. In the dynamic discrete choice model, we identify both subjective and objective outcomes, distinguishing ex post and ex ante outcomes. We show how to identify agent information sets.     

The Actuarial Balance Sheet for Pay‐As‐You‐Go Finance: Solvency Indicators for Spain and Sweden*

This paper provides the first estimate of the actuarial balance of the Spanish contributory pension system for the old‐age contingency, based on official data. The main accounting entries are developed from the principles of double‐entry bookkeeping. The novel entry in the balance sheet, entitled the ‘contribution asset’ or ‘hidden asset’, is at the centre of the theoretical discussion. A comparison between the official balance sheet for the Swedish notional account system and our balance sheet for the Spanish contributory pension system is also provided. The main finding is that the Spanish pension system has an insolvency rate of 31.4 per cent. The policy implication is that unless current legislation is reformed, Spanish taxpayers (the plan sponsor) should count on making transfers to the pension system with a present discounted value of 31.4 per cent of current liabilities. Moreover, a comparison of the consecutive balance sheets for 2001‐06 shows that the degree of insolvency is growing over time, even though the cash‐flow outcome has improved over the same period. Taking steps to reverse this trend and restore solvency is in Spanish taxpayers' interest, and possibly also in the interest of those in the European Union who recognise that there is a chance that they may have to support the Spanish budget in the future.     

History matters: lessons from twenty-five years of the European Accounting Association

Drawing on a number of primary sources (e.g. the minutes of the meetings of the governing bodies of the Association, EAA publications and congress proceedings), this study outlines the undertakings of the European Accounting Association (EAA) from its inception to the present. Examination of available evidence suggests that the activity of the EAA may be explained by the concomitant effect of institutional, organizational and individual factors. It was found that the EAA made considerable progress in: facilitating networking among European accounting scholars; increasing commitment towards high-quality research; incorporating into its structures and activities the notion of diversity; increasing reputation of its annual congress; and substituting its initial Anglo-Saxon-northern European dominance by a more comprehensive European focus. The EAA, though, faces some challenges in the near future: consolidation in southern Europe and other peripheral countries; penetration in eastern Europe; eventual re-definition of its aims and scope in a globalized world; eventual re-definition of the size and scope of its annual congress; and a more prominent role of women in executive posts.