This paper develops Engel relationships to identify the determinants of household expenditures on nursery products and specifies their impact on consumer purchases of these goods for subregions of the United States. Household income, the number of single family home construction starts, educational level attained, and age composition of the population were found in influence nursery product expenditures. The economic variables of income and construction starts appear to be key factors affecting nursery purchases. To maintain a competitive edge, industry participants should monitor these variables carefully and adjust their production and marketing plans to meet changing market conditions.

This paper reports on the latest contributions to over 20 years of research on organic food consumers. There is a general consensus in the literature on the reasons why people buy organic food. However, there is also a gap between consumers’ generally positive attitude toward organic food and their relatively low level of actual purchases. Product differentiation based on intangible features, such as credence attributes such as organic, in fast-moving consumer goods categories is enjoying rapid growth. However, there are many difficulties with research in this area, including the errors inherent in research that relies on consumer self-reporting methodologies. Further, in relation to organic food, there is a divergence between consumers’ perception of its superior health features and scientific evidence. Fresh fruits and vegetables are of vital importance to the organic sector as they are the entry point for many customers and account for one-third of sales. Further, although there is a small proportion of dedicated organic food buyers, most sales come from the majority of buyers who switch between conventional and organic food purchases. This paper identifies the practical implications for generic organic food marketing campaigns, as well as for increasing sales of specific products. It concludes with suggested priorities for further research.

The paper proposes a new way of assessing an investment manager's skill in the day-to-day management of portfolios. The authors argue that traditional investment performance measurement techniques, whilst appropriate for many purposes, do not provide the insights necessary to judge the skill of investment managers. To judge manager skill, it is necessary to consider the activity within the portfolio in terms of the purchases, sales and trades, and to determine the value added by that activity. The paper sets out a framework by which this analysis can be carried out and, by means of examples, indicates how the results can be interpreted. The paper also explores briefly a number of other issues such as the qualitative aspects of performance monitoring. In writing the paper, the concept of risk in various guises was never far from the authors' minds, and it is true to say that the meaning of risk in the context of assessing manager skill lies at the very heart of the paper.

The paper proposes a new way of assessing an investment manager's skill in the day-to-day management of portfolios. The authors argue that traditional investment performance measurement techniques, whilst appropriate for many purposes, do not provide the insights necessary to judge the skill of investment managers. To judge manager skill, it is necessary to consider the activity within the portfolio in terms of the purchases, sales and trades, and to determine the value added by that activity. The paper sets out a framework by which this analysis can be carried out and, by means of examples, indicates how the results can be interpreted. The paper also explores briefly a number of other issues such as the qualitative aspects of performance monitoring. In writing the paper, the concept of risk in various guises was never far from the authors' minds, and it is true to say that the meaning of risk in the context of assessing manager skill lies at the very heart of the paper.