An introduction to evolutionary theories in economics

This paper presents the basic ideas and methodologies of a set of contemporary contributions which are grouped under the general heading of evolutionary economics. Some achievements-especially with regard to the analysis of technological change and economic dynamics-are illustrated, some unresolved issues are discussed and a few promising topics of research are flagged.This article draws on a chapter prepared for the book Market and Organization: The Competitive Firm and its Environment, edited within an EEC/Tempus Programme by LATAPSES, Nice, France, and Iside, Rome.     

The Impact of Securities Litigation Reform on the Disclosure of Forward-Looking Information By High Technology Firms

This study evaluates corporate voluntary disclosure of forward-looking information under the safe harbor provision of the Private Securities Litigation Reform Act of 1995. Using a sample of 523 computer hardware, computer software, and pharmaceutical firms, we find a significant increase in both the frequency of firms issuing earnings and sales forecasts and the mean number of forecasts issued following the Act's passage. To provide more direct evidence that our findings are attributable to the Act reducing firms' legal exposure, we develop a proxy for litigation risk and examine whether the increase in disclosure is more pronounced for firms at greatest risk of a lawsuit. As expected, we find that the change in disclosure is increasing in firms' ex ante risk of litigation. Finally, we report that the safe harbor had no adverse impact on the quality of forward-looking information. Forecast errors, whether directional or non-directional, were not significantly affected by the Act's passage.     

An empirical note from case documents on the economies of network television advertising

Economists have argued for many years about the extent of economies of geographic scope in television advertising. This paper maintains that previous studies could not correctly resolve this issue because they employed list prices, rather than transactions price data. In contrast to previous research, this paper reports transaction based prices from internal company documents. These transaction based data indicate that network advertising was substantially less costly per viewer than equivalent coverage using local spot television advertising. Local firms, unable to use network advertising as did their national competitors, faced high per viewer advertising costs as a result.     

Changes in poverty in Zimbabwe between 1990 and 1996: Worsening outcomes under adverse conditions

The article examines changes in poverty and sources of change in Zimbabwe between 1990 and 1996. Comparable national survey data are used for both periods. Findings indicate that levels of wellbeing and poverty worsened during the period, although there is some evidence that inequality is lower in the latter year. Rural poverty is more prevalent, severe and deeper than that in urban areas, but urban poverty grew dramatically during the period. Much of the growth of urban poverty is associated with economic restructuring and the failure of the urban economy to produce high-quality jobs. While the educational attainment of the urban population grew during the 1990s, secondary and higher levels of education were no longer a guarantee of escape from poverty in 1995/6. In rural areas, all land-use types exhibited an increase in poverty; these findings are robust to the welfare measure chosen.     

Customer loyalty to food retailers in Northern Ireland: ‘devoted loyals’ or ‘promiscuous switchers’?

Store loyalty is a major challenge for food retailers, and the food retail market in Northern Ireland has been subject to considerable change in the past decade. Although shoppers will often patronize many stores, they typically have a primary affiliation to a ‘main’ food store that captures the majority of their food purchases. This study uses a unique approach to segmenting customers into groups based on loyalty in terms of both the type of data used to generate a loyalty score and the data collection techniques used. Innovative projective techniques have been used alongside traditional questioning techniques to reveal ‘behavioural’ and ‘emotional’ loyalty indicators, and in doing so create a holistic measure of customer loyalty to a main food store, allowing customers to be segmented into groups based on loyalty. A paper‐based questionnaire was administered to 152 food shoppers from throughout Northern Ireland. Responses to traditional questioning formats and projective techniques (cartoon friends and mini case studies) were analysed and used to generate a loyalty score for each respondent. The first group of customers nearly always visit the same store, are willing to recommend the store to others and are less likely to switch to a competitor, even when offered an incentive to do so. They also rate the ‘hard’ attributes of this store highly. As a result of these characteristics, customers in this segment were termed ‘devoted loyals’. The second group of customers may occasionally use a different supermarket for food shopping, some would consider switching to a competitor if offered an incentive, and they rate ‘hard’ store attributes at a slightly lower level than the ‘devoted loyals’. Based on their group profile, these customers were assigned the title of ‘susceptibles’. The third group of customers are less willing to actively encourage friends and family to shop at a specific store. Many in this group did not consider their current store as their number one choice in the next few years. An incentive to switch to a competitor store is more likely to trigger a transfer of loyalty by this group. These customers were termed ‘promiscuous switchers’.     

PSM system upgrade in response to an Occupational Safety and Health Administration NEP inspection

This article presents a brief analysis of the Occupational Safety and Health Administration (OSHA) Petroleum Refinery Process Safety Management National Emphasis Program (NEP) citation results as of early 2009. It includes trends distilled from the OSHA inspections performed to date. Recommendations for preparing for PSM NEP level inspections are provided. A proven approach to designing and implementing an upgrade project for OSHA process safety management systems and EPA risk management program is described. The model presented can be targeted to a facility's NEP specific citations or used for a general PSM system effectiveness upgrade. This article includes recommendations for improving PSM as a result of an NEP inspection. The recommendations are for the PSM elements that routinely have major OSHA citations; that is: Operating Procedures, Mechanical Integrity, Process Hazards Analysis, Process Safety Information, Management of Change, and Incident Investigations. © 2009 American Institute of Chemical Engineers Process Saf Prog 2009     

Knowledge Creation in Strategic Alliances: Another Look at Organizational Learning

This paper argues that a certain amount of partner conflict must exist for knowledge creation to occur in a strategic alliance. We argue that such tensions can generate opportunities for firms to challenges each other's assumptions and paradigms, leading to novel perspective and new solutions. This position is contrasted to existing theories that present conflict minimization as the route to alliance success. The paper exploits the generative or double-loop learning process (Liedtka et al. 1997; Argyris and Schon 1996) to build a model of inter-organizational knowledge creation and explicitly considers the implications for partner interactions. We suggest that knowledge creation often occurs in turbulent and discontinuous environments associated with the tension between alliance partners of different cultural origins. This paradox is critical to understanding the reasons why strategic alliances often fall short in their potential to create new knowledge.     

Structural Change and the Labor-market Effects of Globalization

The paper develops a simple political‐economy model of unemployment benefit determination in a small open economy characterized by bargaining between firms and unions. The authors derive a number of comparative static results and present empirical results for a panel of OECD countries that are broadly consistent with the theory.