Options-based forecasts of futures prices in the presence of limit moves

The reported analysis examines a simultaneous estimation option-based approach to forecast futures prices in the presence of daily price limit moves. The procedure explicitly allows for changing implied volatilities by estimating the implied futures price and the implied volatility simultaneously. Using futures and futures options data for three agricultural commodities, it is found that the simultaneous estimation approach accounts for the abrupt changes in implied volatility associated with limit moves and generates more accurate price forecasts than conventional methods that rely on only one implied variable.     

Immigration and the unemployment benefit programme in Australia

A widely held view is that immigrants contribute to public debt through their over representation in the unemployment benefit programme. An empirical investigation, based on the 1990 Income Distribution Survey, finds support for this view. In contrast to the US and Canadian studies, this paper observes that the probability of receiving unemployment benefits is higher for immigrants than the native-born population and immigrants, who participate in the unemployment benefit programme, also receive a greater amount of unemployment benefits.     

Compositional data analysis and zeros in micro data

The application of compositional data analysis methods in economics has some attraction. The methodology relies upon the use of 'log-ratios' in the statistical analysis. Such an approach is not possible when the data to be analysed include observations where the observed budget share is zero. We, therefore, consider and extend the methods of compositional data analysis in the situation where the data to be analysed include observations where the observed budget share is zero. The modified compositional data methods are discussed both in statistical terms and through potential economic interpretations of the method. Further, the modified methodology is applied to the 1988-89 Australian Household Expenditure Survey yielding estimates for a system of Engel curves.     

The demand for paper and paperboard: econometric models for the European Union

Cost minimization theory suggests national demand equations for paper and paperboard in which demand is a negative function of the price of paper and paperboard, and a positive function of gross national product. A dynamic version of this model was estimated with data from European Union countries, for newsprint, printing and writing paper, and other paper and paperboard. Country-by-country equations proved unstable. Pooling the data across countries, with dummy variables to account for fixed country effects, led to well defined short-term and long-term elasticities with respect to price and gross national product. The hypothesis that income and price elasticities were the same across the European Union countries could not be rejected at the 1% significance level, for the three product groups. From 1969 to 1995, most of the growth in demand had been due to the growth in national product, while price increases had only a small negative effect.     

Parental preferences and choice of school

This paper provides a UK high resolution microeconometric study of parental preferences and the choice process for secondary schools. Given the particular geographical features of the region, first preference almost entirely related to one of two state schools, which is a situation that perhaps better reflects the real nature of the options faced by most parents in the UK. In contrast to earlier work, distance and access considerations were explicitly incorporated in the preference and choice models estimated and found to be a significant influence on parental decisions. Further significant factors were found, dependent upon the parents' actual choice of school.     

Schooling,health knowledge and obesity

The connection between schooling and health is well documented. An important empirical issue that needs to be examined, however, is whether schooling's effects are due to individual health knowledge differences. This empirical study examines this issue with an increasingly important health indicator, obesity. Since provision of health knowledge is a major tool of public agencies promoting health, this empirical study uses a new direct measure of health knowledge to test this hypothesis. The results show that knowledge is inversely related to the probability that an individual is obese. Schooling's effects on relative weight and the probability of being obese are explained by differences in knowledge. This result may imply that schooling's effect on the allocative efficiency of the household production of health is the main reason schooling is linked to health behaviour. The result also may imply that the most effective method of health education is to highlight the disease element of poor dietary habits and health. More importantly, the simulations conducted suggest positive returns to knowledge based on improvements in the probability estimates.     

Measuring market distortion: international comparisons,policy and competitiveness

This paper develops a framework to simultaneously estimate production possibility frontiers and measure distortions in factor and product markets. The econometric results, based on a panel of 61 countries over the period 1970 through 1985, reveal very little distortion in factor markets but considerable distortion in product markets. In addition, the distortions tend to vary with the cyclical behaviour of economic activity. Further, the results suggest that in order to improve efficiency, commercial policy should aim at reducing product-market distortions rather than factor-market ones.     

Impacts of monetary and macroeconomic factors on food prices in eastern and southern Africa

Eastern and southern Africa has been experiencing relatively large increases in real food prices since the early 1980s. Real food prices in some African countries grew as much as 11% per year during the 1980-1996 period. The huge volatility in food prices coincided with the implementation of structural adjustment programmes in several African countries. This study examines the impacts of monetary and macroeconomic factors on real food prices in eastern and southern Africa. Using the technique of cointegration and error correction modelling to test the long-run relationship between real food prices and the factors that influence their behaviour in selected African countries. Demand elasticities for food are estimated for selected countries. The empirical results show that changes in domestic food production, coupled with income, trade, exchange rate and monetary policies have significant impacts on real food prices, with wide implications for food availability and food security in the region.     

A multivariate cointegrated model testing for temporal causality between exports and outward foreign investment: the Spanish case

Historically, outward foreign direct investment has been contemplated as an alternative way of firms' internationalization. In this line, a relational substitution between exports and foreign direct investment would be expected. However, this seems to contrast with recent developments in the ‘new trade theory’ which show that the volume of trade and the emergence of multinational firms may be positively related one to the other. This paper investigates if some empirical evidence exists either supporting a substitution or a complementary relationship between both forms of internationalization. With this aim, an aggregate time series approach was adopted using quarterly aggregate data (seasonal adjusted) from the Spanish economy covering the period 1970.I–1992.III. A vector autoregressive model was employed for both multivariate cointegration analysis and Granger temporal causality testing. The strength and direction of causal relationships are shown through the dynamic variance decomposition and the impulse response technique. Once controlling for relative market size and prices, the results provide evidence of a positive long-term Granger causality going from foreign direct investment to exports, although not in the opposite direction.