The role of entry barriers in the development of the offshore supply sector in scotland

This paper examines the offshore oil supply sector and shows how the entry barriers experienced by new supply firms are imposed not by other supply firms but by the oil companies. This is done to ensure product quality and reliability of service rather than the more general attention to price considerations. The range of entry barriers are discussed in relation to key characteristics of the oil industry. As a spin-off this experience appears to have generated a more responsive attitude towards technological and commercial change throughout Scottish industry.     

The Price of Options Illiquidity

The purpose of this paper is to examine the effect of illiquidity on the value of currency options. We use a unique dataset that allows us to explore this issue in special circumstances where options are issued by a central bank and are not traded prior to maturity. The value of these options is compared to similar options traded on the exchange. We find that the nontradable options are priced about 21 percent less than the exchange-traded options. This gap cannot be arbitraged away due to transactions costs and the risk that the exchange rate will change during the bidding process.     

The South African labour market, 1995–2015

This study investigates the changes in the South African labour market in the post-apartheid period. While unemployment increased over the 1995–2015 period, employment also increased. Nonetheless, the extent of employment increase is not rapid enough to absorb all net entrants into the labour force, resulting in increasing unemployment, or an employment absorption rate of 65.3%. Unemployment is concentrated in specific demographically and geographically defined groups, most notably Africans, the lowly educated and those aged below 30 years, residing in rural areas in Gauteng. Finally, four worrying findings are observed: youth jobseekers aged below 30 years struggle to find their first job; chronic unemployment is more serious for the relatively older jobseekers (aged 45 years or above) with past work experience; employees working for small, medium and micro enterprises still stagnate at approximately 3.5 million; and jobseekers from the older age cohorts are less likely to actively seek work by enquiring at workplaces and answering job advertisements.     

Can evolutionary algorithms describe learning processes?

Evolutionary algorithms have attracted more and more the attention of economists in recent years. Repeatedly it is claimed that they are an adequate tool to describe learning processes within a population of individuals. The present paper examines this claim. To this end, a learning model is set up that contains the three elements of variation, elimination, and imitation that are claimed to correspond with the processes of mutation, selection, and replication of biological evolution. Subsequently, this model is compared with a formulation of evolutionary algorithms. The comparison reveals that although both processes have a similar structure there are crucial differences between the two dynamics.