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101.
This paper is concerned with the structure and time-consistency of optimal fiscal and monetary policy in an economy without capital. In a dynamic context, optimal taxation means distributing tax distortions over time in a welfare-maximizing way. For a barter economy, our main finding is that with debt commitments of sufficiently rich maturity structure, an optimal policy, if one exists, is time-consistent. In a monetary economy, the idea of optimal taxation must be broadened to include an ‘inflation tax’, and we find that time-consistency does not carry over. An optimal ‘inflation tax’ requires commitment by ‘rules’ in a sense that has no counterpart in the dynamic theory of ordinary excise taxes. The reason time-consistency fails in a monetary economy is that nominal assets should, from a welfare-maximizing point of view, always be taxed away via an immediate inflation in a kind of ‘capital levy’. This emerges as a new possibility when money is introduced into an economy without capital. 相似文献
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Rob Goffee 《Business ethics (Oxford, England)》1993,2(1):8-13
Dr Goffee reviews empirical evidence on the labour market position and work experience of women managers, assesses the kind of work situations which are likely to be perceived by women managers - and, in some cases, their partners and colleagues - as involving an "ethical" dimension, and suggests possible sources of differentiation in the experiences of European women managers which are worthy of further comparative research. The author is Associate Professor of Organisational Behaviour at London Business School. 相似文献
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The possible contribution of local sales chains to the reduction of energy consumption has been hotly debated in recent years. Some authors establish a link between the reduction of distances traveled by food and lower energy consumption due to transportation, while others hold that local supply chains have a poor energy performance. This article engages this debate by comparing the rates of energy consumption attributable to different modes of distribution of fruits and vegetables in a region of France. 相似文献
107.
An evolutionary approach to the delimitation of labour market areas: an empirical application for Chile. Spatial Economic Analysis. Labour market areas (LMAs) are argued to represent a more appropriate policy framework than administrative units for the analysis of spatial labour market activity. This article develops LMAs for Chile by applying an evolutionary computation approach. This innovative approach defines LMAs through an optimization process by maximization of internal cohesion, subject to restrictions of minimum levels of self-containment and population. To evaluate the appropriateness of the LMAs, comparative analyses are performed between alternative delimitations based on different parameter configurations of the proposed method versus administrative boundaries and the most widely used method for official LMA delimitation, the travel-to-work areas method. 相似文献
108.
Siem Jan Koopman Roman Kräussl André Lucas André B. Monteiro 《Journal of Empirical Finance》2009,16(1):42-54
We use an intensity-based framework to study the relation between macroeconomic fundamentals and cycles in defaults and rating activity. Using Standard and Poor's U.S. corporate rating transition and default data over the period 1980–2005, we directly estimate the default and rating cycle from micro data. We relate this cycle to the business cycle, bank lending conditions, and financial market variables. In line with earlier studies, the macro variables appear to explain part of the default cycle. However, we strongly reject the correct dynamic specification of these models. The problem is solved by adding an unobserved dynamic component to the model, which can be interpreted as an omitted systematic credit risk factor. By accounting for this latent factor, many of the observed macro variables loose their significance. There are a few exceptions, but the economic impact of the observed macro variables for credit risk remains low. We also show that systematic credit risk factors differ over transition types, with risk factors for downgrades being noticeably different from those for upgrades. We conclude that portfolio credit risk models based only on observable systematic risk factors omit one of the strongest determinants of credit risk at the portfolio level. This has obvious consequences for current modeling and risk management practices. 相似文献
109.
Damona Doyle Robert Jolly Rob Hornbaker Tim Cross Robert P. King E. Fred Koller William F. Lazarus & Anthony Yeboah 《Review of Agricultural Economics》2000,22(2):566-585
Exploratory case study research was initiated to study the evolution of management information systems and their use in operational and strategic decisions. The unit of analysis was the management team on farms with innovative or successful information systems. Human factors, such as an analytical nature and commitment to lifelong learning, were perceived to be the most important common elements. Production variables often were critical success factors. Managers annually developed financial statements; enterprise and "what if" analyses were conducted regularly. Learning about questions that innovative producers have difficulty addressing was time-consuming but instructive with respect to research and educational needs. 相似文献
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