Does implied volatility provide any information beyond that captured in model-based volatility forecasts?

This paper contributes to our understanding of the informational content of implied volatility. Here we examine whether the S&P 500 implied volatility index (VIX) contains any information relevant to future volatility beyond that available from model based volatility forecasts. It is argued that this approach differs from the traditional forecast encompassing approach used in earlier studies. The findings indicate that the VIX index does not contain any such additional information relevant for forecasting volatility.     

Asian development and poverty reduction strategies: Integrating fisheries into the development discourse

Asia is the world’s foremost capture fishery and aquaculture producer. It is also home to the majority of the world’s fishers and marine fleet (decked and undecked). Consequently, there is every reason to expect that this importance is reflected in national development discourses. This article identifies the socio-economic importance of fisheries in the region in terms of its contribution to primary exports, domestic protein consumption, employment and poverty alleviation. We then analyse national development and poverty reduction strategy documents using a content analysis methodology previously applied to measure the extent to which environmental or forestry issues had been mainstreamed into national policy documents. This enables us to identify those countries that have currently integrated fisheries into the national development discourse – and those that have not. We conclude by proposing two strategies to enable the more effective integration of fisheries into the development agenda.     

A general test for time dependence in parameters

A new test for time‐dependent parameters is proposed. The Trig‐test is based on a trigonometric expansion to approximate the unknown functional form of the variation in the parameters concerned. It is shown to have the correct empirical size and excellent power to detect structural breaks and stochastic parameter variation. The appropriate use of the Trig‐test is demonstrated by testing for structural breaks in the US inflation rate. The test detects a statistically significant increase in the US inflation rate beginning in the early 1970s and lasting through to the early 1980s. Copyright © 2004 John Wiley & Sons, Ltd.     

Introduction

We look at the growth experience of 25 transition countries over the 25 years since the dissolution of the USSR. The initial collapse in income was much more severe in 12 former Soviet Union countries (FSU12) than in the 10 transition countries that joined the EU in 2004 and 2007 (EU10). In 2015, FSU12 income levels were further behind EU10 than they were at the start of transition, despite more rapid growth in the last 15 years. Compared to predictions from a parsimonious growth model, the region as a whole is ‘normal’ in terms of growth performance since the 2000s. However, the FSU12 over-perform and the EU10 under-perform relative to model predictions for the last 15 years.     

Value Potentials and Challenges of Service-Oriented Architectures

This article summarizes the results of an empirical study among large German enterprises regarding the value potentials and challenges of service-oriented architectures (SOA).     

Value of moving from central planning to a market system: lessons from the Israeli water sector

This paper explores the implications of the transformation of the system of water resources allocation to the agricultural sector in Israel from a one in which allotments are allocated to the different users without any permission to trade with water rights. A mathematical planning model is used for the entire Israeli agricultural sector, in which an ‘optimal’ allocation of the water resources is found and compared to the existing one. The results of the model are used in order to gain insight into the shadow price of the different water bodies in Israel (about eight). These prices can then be used to grant property rights to the water users themselves in order to guarantee rational behavior of water use, since now one can sell their rights at the source itself. The implication is clear with regard to any possible movement towards a market system in any other sector. From the dual prices of the primal problem we can forecast the equilibrium prices and their implications for the different users. The central government does not have to interfere with the market mechanism because, as will be shown, every farmer has the option to sell his right or to use it. As participation in the market is voluntary, every farmer makes a decision that is both individually and socially rational. However, in moving from a central planning allocation to a market mechanism, the government has another task, which is to grant the property rights in order for the market to begin to evolve. It is not guaranteed that under any initial allocation a decentralization of the system will benefit all the regions but at least part of the problem is to be resolved between the regions themselves. As the results shows, there is a potential budgetary benefit of 28 million dollars when capital cost is not included and 64 million dollars when they are included.     

Endogenous product versus process innovation and a firm’s propensity to export

This article provides an empirical analysis of the effects of new product versus process innovations on export propensity at the firm level. Product innovation is a key factor for successful market entry in models of creative destruction and Schumpeterian growth. Process innovation helps securing a firm’s market position given the characteristics of its product supply. Both modes of innovation are expected to raise a firm’s propensity to export. According to new trade theory, we conjecture that product innovation is relatively more important in that regard. We investigate these hypotheses in a rich survey panel data set with information about new innovations of either type. With a set of indicators regarding innovation motives and impediments and continuous variables at the firm and industry level at hand, we may determine the probability of launching new innovations and their impact on export propensity at the firm level through a double treatment approach.