Networks or neighborhoods? Correlations in the use of publicly-funded maternity care in California

This study focuses on “network effects” in the utilization of publicly-funded prenatal care using Vital Statistics data from California for 1989-2000. Networks are defined using 5-digit zip codes and a woman's racial or ethnic group. Like others, we find evidence that the use of public programs is highly correlated within groups defined using race/ethnicity and neighborhoods. These correlations persist even when we control for many unobserved characteristics by including zip code-year fixed effects, and when we focus on the interaction between own group behavior and measures of the potential for contacts with other members of the group (“contact availability”). However, the richness of our data allows us to go further and to conduct several tests of one important hypothesis about networks: that the estimated effects represent information sharing within groups. The results cast doubt on the idea that the observed correlations can be interpreted as evidence of information sharing. In particular, we find estimated effects to be as large or larger among women who have previously used the program as among first-time users.     

On latitude and affluence: The equatorial grand canyon

Our objective is to explain per capita GDPs by the countries' latitude, using PPP-based data for 138 countries in 1985 (PPP = purchasing power parity). A simple approach is formulated which nevertheless accounts for as much as two-thirds of the variance of the per capita GDPs.Theil is the McKethan-Matherly Eminent Scholar Emeritus and Courtesy Professor of Food and Resource Economics, while Galvez is an Associate in Research of the Bureau of Economic and Business Research, both at the University of Florida (UF). We thank Sri Devi Deepak, Charles B. Moss and James L. Seale of the UF Food and Resource Economics Department for helpful discussions and Robert Summers of the University of Pennsylvania for making the data available to us.     

“Greed is good” ... or is it? Economic ideology and moral tension in a graduate school of business

This article reports the results of an exploratory investigation of a particular area of moral tension experienced by MBA students in a graduate school of business. During the first phase of the study, MBA students' own perceptions about the moral climate and culture of the business school were examined. The data gathered in this first part of the study indicate that the students recognize that a central part of this culture is constituted by a shared familiarity with a set of institutionally reinforced premises about human behavior and motivation including the ideas that: 1) people are self-interested utility-maximizers, 2) individuals should be unimpeded in their pursuit of their own self-interest through economic transactions, and 3) virtually all human interactionsare economic transactions. The data further indicated that the business students experience a degree of tension between this ethic of self-maximizing and the everyday ethics prevalent in our broader culture, in which altruism and selflessness are central elements. The final section of the study was an effort to see whether and how these institutionally sanctioned premises were integrated into the students' arguments about the relationship between self-interest and social responsibility.Janet S. Walker is currently a PhD candidate in The University of Chicago's Committee on Human Development. Previously, Ms. Walker worked in both public and private sector organizations, conducting economic research in the United States and abroad. Ms. Walker's current research focusses on understanding economic activity as meaningfully embedded in a psychological and cultural context. Ms. Walker is also pursuing certification in clinical psychology.     

Employment relations on major construction projects: the London 2012 Olympic construction site

The construction of the London 2012 Olympic Park provided a model of employee relations that crossed organisational boundaries. This model was countercultural, contrasting with the unregulated approaches that are commonplace in construction and contrasting too with collaborative models that have been developed on other major projects.     

Experimental evidence of bank runs as pure coordination failures

We investigate how coordination requirement, measured by the coordination parameter, affects the occurrence of miscoordination-based bank runs in controlled laboratory environments. We identify an indeterminacy region of the coordination parameter such that games with the parameter within the region have varying coordination outcomes and exhibit persistent path dependence. Experimental economies with the parameter above (below) the region stay close or converge to the run (non-run) equilibrium. Switches between the two equilibria occur even with fixed economic fundamentals. The experimental results are well accounted for by a version of the evolutionary algorithm that uses experimentation rates estimated from the experimental data.     

Consumer entitlement theory and measurement

Previous studies of personality observe that a healthy individual maintains a level of entitlement. Consumer entitlement concerns the extent to which a customer expects special treatment in retail environments. To date, marketing scholars have not investigated consumer entitlement at the buyer–seller interface. This article represents an initial attempt to examine this construct in a retailing context. The development of a scale, the consumer entitlement inventory (CEI), is reported. The scale's psychometric properties were examined, with the use of an undergraduate sample ( N = 410). Antecedents and implications for consumer entitlement are discussed. © 2005 Wiley Periodicals, Inc.     

The Influence of Regulation on the Publication of Consolidated Statements

The impact of regulation on the publication of consolidated statements by Australian listed companies is examined by reviewing evidence of the first use of consolidated statements by holding companies listed on the Sydney Stock Exchange, excluding companies incorporated elsewhere, and relating that evidence to the chronology of the development of statutory, professional and stock-exchange regulations permitting or prescribing the use of consolidated statements. The findings are that the wider adoption of consolidation accounting has been associated with changes in statutory and other forms of regulation. These findings contradict the conclusions of earlier studies (Whittred, 1986, 1987, 1988), namely that regulation was of minimal influence, and that the adoption of consolidation accounting was explainable by 'contracting cost variables'. Major flaws identified in these earlier studies were an apparent failure to recognize that Sydney listed companies may have been subject to regulations established in other jurisdictions, and a crucial misinterpretation of the history of Australian stock exchange listing rules, which led to the misidentification of listed companies as having adopted consolidation 'voluntarily'.
The findings also underline comments made previously in critiques of other papers which have tested hypotheses incorporating agency or contracting costs. While historical analysis can assist the exercise of judgment in the classification of events, those who rely on historical evidence in the development of theories and in framing hypotheses should use that evidence with care, having regard to pertinent contextual factors.     

Responses to Legislative Changes: Corporate Whistleblowing Policies

Survey responses from Fortune 1000 firms were examined to assess whether firms changed their whistleblowing policies to response to changes in state statutes concerning whistleblowing. We predicted that firms might have created internal channels for whistleblowing in response to new legislation that increased their vulnerability to whistleblowing claims by employees. In fact, very few firms indicated that they had created their policies in responses to legal changes.     

Homogeneous middleman groups as superorganisms,endogamous ethnic groups,and trust networks: Reply to comments on Janet Landa’s target article, ‘The bioeconomics of homogeneous middleman groups as adaptive units’

This article responds to some of the very valuable comments on my target article (Landa, J Bioeconomics 10(3):259–278, 2008) on homogeneous middleman groups (HMGs) as adaptive units. In addition to viewing HMGs as adaptive units, I discuss the idea of viewing HMGs as superorganisms and as endogamous ethnic groups, as well as re-emphasizing the importance of HMGs as trust networks. My theory of HMGs as adaptive units shares some similarities with biologists’ ‘biological market theory’ of mutualistic interactions between species.      

Customer Rage Episodes: Emotions, Expressions and Behaviors

In this research, we examine customer rage-associated emotions, expressions, and behaviors following service failure. Three independent studies involving 656 respondents and multiple methods are employed to investigate customer rage. Scales for each form of rage emotion, expression, and behavior were developed and used to assess their interrelationships. Results suggest that different forms of customer rage emotions tend to be linked to different types of expressions and behaviors. For example, both Rancorous Rage and Retaliatory Rage emotions tend to increase Verbal expressions (such as raising one's voice, yelling, and making insulting remarks). In contrast, Retaliatory Rage emotion increases Physical expressions (tried to physically harm a service employee, tried to cause damage to property, and threatened to damage property) and Displaced expressions (took anger out on other people nearby, yelled at other people, and took their anger out on other people later on) whereas Rancorous Rage emotion decreases Physical and Displaced expressions. Interestingly, Verbal expressions are linked to passive-aggressive behaviors, such as switching service providers and spreading negative word of mouth while Physical expressions are linked to relatively aggressive behavior, such as a desire for revenge. Implications for scholarly research and retailers are discussed.