OPTIONS LISTING, MARKET LIQUIDITY AND STOCK BEHAVIOUR: SOME CANADIAN EVIDENCE

This study examines the price behaviour, trading volume and liquidity of stocks in the Canadian market at the time of options listing. Unlike some studies examining similar effects in the United States, the present one finds no evidence to indicate that either daily return volatility or trading volume is affected by the listing. Similarly, liquidity, as measured by the bid-ask spread, is unaffected. At the same time, cross-sectional tests indicate an inverse relationship between before-to-after trading volume and the before-to-after bid-ask spread.     

Skewness and Kurtosis Implied by Option Prices: A Correction

Corrado and Su (1996) provide skewness and kurtosis adjustment terms for the Black‐Scholes model, using a Gram‐Charlier expansion of the normal density function. In this note we provide a correction to the expression for the skewness coefficient and illustrate the effect on call option prices of the error found.     

MARKETS, IMPER FECTIONS AND THE DANGERS OF OVER-REGULATING ENERGY MARKETS

Government regulation in general has over-expanded. However, in British energy markets, a new form of regulation, concentrating on promoting competition in gas and electricity, has emerged to the benefit of consumers. If the government pursues its policy of targeting favoured energy activities, these gains will disappear, the costs of achieving environmental targets will be unnecessarily heavy and energy markets will be re-politicised.     

Employee Financial Participation and Productivity: An Empirical Reappraisal

Avner Ben‐Ner and Derek Jones cast doubt on the notion of a simple causal link between financial participation (FP) and productivity, and consequently on the validity of much of the empirical literature that has sought to quantify this relationship. This paper is an attempt to investigate this proposition. Our empirical reappraisal revealed that the route through which employee share ownership and profit‐sharing schemes achieve these gains is quite separate and more involved than either the theory or prior empirical research suggests. This is particularly evident by extending the complementarities thesis beyond purely participatory bundles to embrace firm‐specific and organizational variables. Our analysis also addressed recent calls to aid the interpretation of the observed effects of FP by creating a link between the use and operation of FP and its impact on productivity.     

BRITAIN: Coal might still be saved

Could privatisation save the coal industry? Professor Colin Robinson, editorial director of the Institute of Economic Affairs, argues that privatisation and deregulation might save much of the remaining coal industry.     

Tactical responses to seasonal conditions in whole-farm planning in Western Australia

In dryland agricultural systems, efficient farm management requires a degree of flexibility according to variations in climate from year to year. Tactical adjustments to the mix of farm enterprises can capitalize on good growing conditions and minimise losses under poor growing conditions. In this paper, a discrete stochastic programming model of dryland wheat-sheep farms in Western Australia is used to identify optimal tactical adjustments to climate and to calculate the value of these tactical adjustments. The model, MUDAS, includes nine discrete season types with a wide range of options for tactical adjustments in each. In the standard model, optimal tactical responses increase expected net cash surplus by approximately 22% relative to a fixed or inflexible strategy. In most season types, changes to the long term farm strategy are made on less than 10% of the farm area, although in some seasons over 25% of the farm can require adjustments to the enterprise selected. The benefits of flexibility are not evenly distributed across different season types but occur predominantly in the best and worst seasons. The magnitude of benefits is affected differently by different commodity prices. Benefits of flexibility are due to capitalizing on knowledge about the greater volatility of profits from cropping than from livestock production. Deterministic models and even stochastic models which don't include activities for tactical adjustments miss this key feature of the system.     

Investment Patterns of Informal Investors in the Alberta Private Equity Market*

This study identifies three main types of informal investors in private equity markets: relationship investors, opportunity‐based investors, and angel investors. We find evidence that the first two investor types are a major total source of capital and they prefer to invest smaller amounts close to home and in the context of existing relationships. With respect to angel investors, we find evidence of stratification in their desired investment amount which is consistent with a model where their investments evolve though a life cycle of investing. We also find evidence that changes to capital market regulations that allow for lower investment amounts by this type of investor increase the amount of capital available for early‐stage firms.