Existence of a Pareto-optimal equilibrium in nearly-stationary overlapping-generations economies

Summary In overlapping-generations models of fiat money, the existence of a Pareto-optimal equilibrium — which defines an optimal quantity of money — is more general than well-known counter-examples suggest. Those examples, having no optimal equilibrium just because there are small variations in households' tastes and endowments across generations, are not typical. On the contrary: For an open-dense, full-measure subset of smooth stationary economies and an open-dense subset of continuous stationary economies, introducing small variations in tastes and endowments across generations preserves the existence of an optimal equilibrium. Put simply, optimal equilibria generically exist for nearly-stationary economies.I thank Scott Freeman, Katsuhiko Kawai, and two referees for proofreading this text; all lead to clarifications.     

BANK INTEREST MARGINS AND BUSINESS START-UP COLLATERAL: TESTING FOR CONVEXITY

The paper investigates the relationship between bank interest rate margins and collateral for loans issued to new ventures. The analysis finds a convex U‐shaped relationship. The results indicate that while provision of collateral initially reduces bank exposure to risk (through security, more optimal levels of capital and lower moral hazard among entrepreneurs) that beyond a point, the positive risk‐wealth association gives rise to greater risk taking propensity among entrepreneurs and ultimately higher interest rates. This indicates that a lender's pricing policy may even somewhat help to level the competitive playing field between ventures launched by higher and moderately wealthy entrepreneurs.     

Are batteries ready for plug-in hybrid buyers?

The notion persists that battery technology and cost remain as barriers to commercialization of electric-drive passenger vehicles. Within the context of starting a market for plug-in hybrid electric vehicles (PHEVs), we explore two aspects of the purported problem: (1) PHEV performance goals and (2) the abilities of present and near-term battery chemistries to meet the resulting technological requirements. We summarize evidence stating that battery technologies do not meet the requirements that flow from three sets of influential PHEV goals due to inherent trade-offs among power, energy, longevity, cost, and safety. However, we also show that part of this battery problem is that those influential goals are overly ambitious compared to goals derived from consumers’ PHEV designs. We elicited PHEV designs from potential early buyers among U.S. new car buyers; most of those who are interested in a PHEV are interested in less technologically advanced PHEVs than assumed by experts. Using respondents’ PHEV designs, we derive peak power density and energy density requirements and show that current battery chemistries can meet them. By assuming too aggressive PHEV goals, existing policy initiatives, battery research, and vehicle development programs mischaracterize the batteries needed to start commercializing PHEVs. To answer the question whether batteries are ready for PHEVs, we must first answer the question, “whose PHEVs?”     

An investigation into the relationship between training evaluation and the transfer of training

The purpose of this study was to investigate the relationship between training evaluation and the transfer of training in organizations. We hypothesized that training evaluation frequency will be related to higher rates of transfer because evaluation information can identify weaknesses that lead to improvements in training programs and create greater accountability among stakeholders for training outcomes. The data were obtained from 150 training professionals who were members of a training and development association in Canada. The results indicated that training evaluation frequency is positively related to training transfer. However, among Kirkpatrick's four levels of evaluation criteria, only behavior and results criteria were related to higher rates of transfer of training, indicating that the level of evaluation criteria is important for training transfer. These results indicate the importance of organizational‐level initiatives such as training evaluation in addition to individual‐level practices for facilitating the transfer of training.     

A–Z of Trade Unionism and Industrial Relations - Jack Jones and Max Morris,Heinemann: 6.95

On the basis of the author's recent researches among US insurance companies, this article demonstrates that the more marketing-orientated companies have fared better then those which have relegated marketing to a relatively less important role in their managerial priorities. The article lists a number of issues that the top managements of insurance firms should consider in some depth if they intend to espouse the marketing concept fully.     

Computerized management of tourism marketing information

This article discusses the benefits of applying computers to the management of marketing Information by the tourism industry. It looks at the role of regional tourism associations, and the monitoring of promotional programmes and details how such a system operates and draws together its potential applications.     

When Less is More: Distinguishing Between Entrepreneurial Choice and Performance

This paper uses NCDS data on individual characteristics to distinguish determinants of entrepreneurial choice, income and job generation. A new model of utility from self-employment shows that relaxing liquidity constraints could inhibit performance. Empirically, we find that a range of inheritance enhances the performance of the self-employed and increases self-employment; while higher education also increases self-employment income and job creation, but reduces the probability of self-employment. Combining these choice and performance effects, we find that education has a positive net effect on job creation, as does inheritance up to a certain threshold.     

What makes a die-hard entrepreneur? Beyond the ‘employee or entrepreneur’ dichotomy

The article makes three contributions to the economics literature on entrepreneurship. We offer a new measure of entrepreneurship which accounts for variations in persistence in self-employment and as a result avoids the weakness of approaches which categorise an individual as an entrepreneur by observing their occupation at just one point in their career. We outline an econometric methodology to account for this approach and find, via a statistical test of model selection, that it is superior to probit/logit models, which have dominated the literature. While our results indicate that this existing literature is good at explaining an individual’s propensity to try self-employment, we find that entrepreneurial persistence is determined by a different model and unearth some new insights. Early self-employment encourages entrepreneurial persistence. For men, inheritance encourages persistence, and facilitates initial self-employment. Having a self-employed father as a role model makes sons persist longer. However, somewhat surprisingly, early experience of unemployment does not affect the probability of self-employment, while reducing persistence. The popular ‘unemployment push effect’ is thus rejected in our sample.

Modeling the effects of including/excluding attributes in choice experiments on systematic and random components

This paper examines the impact of attribute presence/absence in choice experiments using covariance heterogeneity models and random coefficient models. Results show that attribute presence/absence impacts both mean utility (systematic components) and choice variability (random components). Biased mean effects can occur by not accounting for choice variability. Further, even if one accounts for choice variability, attribute effects can differ because of attribute presence/absence. Managers who use choice experiments to study product changes or new variants should be cautious about excluding potentially essential attributes. Although including more relevant attributes increases choice variability, it also reduces bias.