Information flows and crashes in dynamic social networks

We develop a dynamic model of information transmission and aggregation in social networks in which continued membership in the network is contingent on the accuracy of opinions. Agents have opinions about a state of the world and form links to others in a directed fashion probabilistically. Agents update their opinions by averaging those of their connections, weighted by how long their connections have been in the system. Agents survive or die based on how far their opinions are from the true state. In contrast to the results in the extant literature on DeGroot learning, we show through simulations that for some parameterizations the model cycles stochastically between periods of high connectivity, in which agents arrive at a consensus opinion close to the state, and periods of low connectivity, in which agents’ opinions are widely dispersed.

     

The relationship between governance structure and risk management approaches in Japanese venture capital firms

This paper attempts to understand what drives Japanese venture capital (JVC) fund managers to select either active managerial monitoring or portfolio diversification to manage their firms' investment risks [J. Bus. Venturing 4 (1989) 231]. Unlike U.S. venture capitalists that use active managerial monitoring to gain private information in order to maximize returns [J. Finance 50 (1995) 301], JVCs have traditionally used portfolio diversification to attenuate investment risks [Hamada, Y., 2001. Nihon no Bencha Kyapitaru no Genkyo (Current State of Japanese Venture Capital), Nihon Bencha Gakkai VC Seminar, May 7]. We found that performance pay is positively related to active monitoring and that management ownership is positively related to active monitoring and negatively related to portfolio diversification. The managerial implication of our study is that venture capitalists should be as concerned about the structure of their incentive systems for their fund managers as they are for their investee-firm entrepreneurs. Agency theory says that contingent compensation is a self-governing mechanism for individual effort that is difficult to measure and verify. When properly applied, equity ownership and performance-based pay can have powerful influencing effects on the strategic choices of managers.     

The New Economy is dead,long live the information economy

The arrival of the 2001–2003 recession caused many to suppose that the so-called “New Economy” was now defunct. This article addresses a number of related issues, including the question of the durability and viability of business cycles in the face of the technological developments of the information age. It asks what went wrong with the New Economy and examines its characteristics as well as its remaining possibilities and prospects for the future. Finally, it considers the spread of the Information Economy to Europe, especially to Germany, the country that one might expect to be the leading European player, but which is not at present actually a strong competitor for that role.     

Introduction to research on Hirschman's Exit,Voice, and Loyalty model

This article introduces this special issue of theEmployee Responsibilities and Rights Journal on recent work exploring Albert O. Hirschman's Exit, Voice, and Loyalty model of dissatisfaction. This special issue provides a forum for researchers and theorists with various perspectives on the model to present their ideas in one place. There are six original articles in this issue, and one discussion piece. While these articles do not resolve the controversies surrounding the Exit, Voice, and Loyalty model, they do provide a clear picture of the current status of research and theory on dissatisfaction in organizations from this perspective.     

Correlation of gender-related values of independence and relationship and leadership orientation

This study compares the relationship between the moral reasoning modes and leadership orientation of males versus females, and managers versus engineers/scientists. A questionnaire developed by Worthley (1987) was used to measure the degree of each participant's respective independence and justice, and relationships and caring moral reasoning modes. Leadership orientation values and attitudes were measured using the Fiedler and Chemers (1984) Least Preferred Coworker Scale.The results suggest that, although males differ from female in their dominant moral reasoning modes, managers are not distinguishable from the engineers/scientists they manage in terms of their moral reasoning mode or Least Preferred Coworker score.Clarence E. Butz is a Professor of Management in the School of Business and Management at Azusa Pacific University, California. Dr. Butz's teaching areas include general management, organizational behavior, and business ethics. Phillip V. Lewis is Dean of the School of Business and Management at Azusa Pacific University. He is the author of Organizational Communication (Gorsuch Scarisbrich, 1996) and Bank Ethics: An Exploratory Study of Ethical Behaviors and Perceptions in Small, Local Banks (Journal of Business Ethics, 11: 197–205, 1992).     

Resource connectivity for beneficial insects in landscapes dominated by monoculture tree crop plantations

Homogenization of agricultural landscapes affects ecological processes and biodiversity and can affect the community composition of ecosystem service providers. These effects can have particular impact in landscapes dominated by monocultures of pollinator-dependent tree crop plantations, which create both spatial and temporal homogeneity at the landscape scale. I looked for associations between the proportion of nearby unmanaged vegetation and potential wild pollinator groups collected within flowering almond orchards in two types of landscape. In the Complex landscape, characterized by a heterogeneous mosaic of multiple crops, semi-natural grassland and natural woodland, insect pollinator groups were not associated with unmanaged vegetation. In the Simple landscape, dominated by monoculture almond plantations, most pollinator groups showed positive relationships with the two unmanaged vegetation types (grassland and woodland). In particular, all wild bee and all but one hoverfly individual were found in remnant native vegetation patches within almond plantations, rather than within rows of almond trees. More research is necessary to identify how structural differences created in monoculture landscapes, between crops and the native vegetation they encroach on, influence ecological communities and the provision of ecosystem services.     

Psychological ownership as a crisis management advertising appeal – antecedents,outcomes, and moderators

In a crisis communication context, this work examines the impact of Psychological Ownership (PO) appeals on Ad message recipients’ development of feelings of PO. It demonstrates that increased levels of PO influence the managerially relevant outcomes attitude toward the company and purchase intentions. In doing so, it finds new application for the construct. In order to better understand the factors that may contribute to or mitigate PO, this research also investigates environmental consciousness as an additional antecedent and gender, persuasion knowledge, and geographic distance as moderators of individuals’ response to such appeals. Managerial and theoretical implications are discussed.     

Why Organizations Struggle to Implement a Market Orientation: Insights Into Beliefs of Top Management

The role of management as an antecedent and barrier to market orientation is well documented. However, the often deeply held beliefs of top management that influence the degree to which their firms are market oriented has been largely overlooked. This study sought to understand these beliefs using a qualitative research method. Case study research employing in-depth semistructured interviews of four Australian vertically integrated horticultural enterprises was undertaken. A total of 28 beliefs of senior management team members were identified. These beliefs, which appeared to have become part of organizational culture, influenced the way market intelligence was gathered and shared and the degree to which the organizations planned, coordinated, and timed their responses to market opportunities and threats. The results suggest that changing management beliefs about marketing and market orientation may be an important component of enhancing the degree to which firms are market oriented.