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1.
    
The role of care to the physician is two-fold. First, it is an income-generating part of the phydician's service; second, it is a form of self-protection against medical-malpractice litigation. The availability of medical-malpractice insurance lessens the role of care as a form of self-protection. This paper considers the relationship between practicing with care and purchasing malpractice insurance. Given tort-law modifications that increase the propensity to litigate, it is shown that, contrary to the purpose of these legal changes, a possible physician response is to substitute insurance for care, yielding a lower care level. Effects of physician risk aversion are also examined.  相似文献   

2.
Price adjustment strategy is a central problem to businesses operating under conditions of high inflation. Three different approaches to the problem are presented and some of their implications tested empirically by means of a unique data set. The empirical observations do not support any of the three traditional approaches.  相似文献   

3.
Previous work (Biggadike 1979) has shown that corporate ventures (CVs) typically realize their first profits as eight-year-old “adolescents.” Eightyfour such CVs drawn from the PIMS database were explored to search for strong predictors of financial performance. This analysis resulted in several findings that corporate level managers (i.e., managers of portfolios of business) can act upon to influence CV performance, as well as numerous other findings that lower level managers can use to strategically position their operations better. Some of these findings are either contrary to those reported elsewhere in other studies of CVs or contrary to results of more mature businesses. These conflicting findings should be of particular interest to the growing number of academicans studying CV management.Corporate level managers are responsible for selecting the markets in which they will fund the development of new CVs, and maintaining a corporate environment conducive to the support of the CVs as they develop. Results of this research indicate that in selecting markets to enter, corporate managers should look for situations in which high market growth can potentially reduce the effect of competitive pressures; in which they are likely to realize a technology-based advantage: and in which they can stand up to international competition. An in-house environment stressing a hands off attitude on the part of corporate level managers appears most appropriate.Business level managers directly involved with the operation of the adolescent business can improve their CVs chances of success through good strategic positioning. By aggressively maintaining a high market share after an early entry into a broadly defined market, they can expect to move more quickly down their learning curves and beyond their break-even points. Given the choice of one or the other, a product that stresses quality over price is more likely to produce higher profits, although customers are obviously able to shop for value by considering both price and quality. Finally, any of the adolescent business' resources devoted to vertical integration should emphasize downstream rather than upstream development.Where the supporting results differ from those results expected and/or reported elsewhere, such differences are described and possible explanations offered. Before turning to the results, we need to describe this work's position within a broader context of developing literature on corporate ventures.  相似文献   

4.
This paper presents new evidence on the effects of multibank holding companies on the structure of local commercial bank markets for deposits. A distinguishing feature of this study is the use of pooled cross-section and time-series data. It is concluded that multibank holding company activity has had a procompetitive effect on the local banking markets in the sample. This finding, which is quite robust under alternative model specifications, has important implications for state and federal policy toward this organizational form and toward intra- and interstate banking.  相似文献   

5.
The Keynesian idea that workers are subject to money illusion in their labor supply decisions is tested by estimating a labor supply function that includes the price level as an independent variable. The model is estimated with data drawn from various BLS publications and is aggregated by SMSA. The results indicate a significant negative supply response to price-level changes after controlling for the nominal wage rate, income, and the SMSA's unemployment rate. There is no significant difference between workers' supply response to the price level and the nominal wage rate, which suggests that workers are not subject to money illusion.  相似文献   

6.
This study investigates whether an industry's profitability and concentration are influenced by structural characteristics of the industries and final markets to which it sells. Very few similar studies have been made, and there is some dispute about their conclusions. This study discusses the methodological problems behind this dispute and the ways in which the specification and data used here avoid these problems. The results show that seller profitability rises with the extent to which buyers are dispersed across many industries, but that no other buyer characteristic exerts a significant influence on either the profitability or the concentration of the selling industry.  相似文献   

7.
A translog cost function is estimated for U.S. manufacturing in order to investigate plant size differences in responses to increases in energy prices. Smaller plants were more intensive users of energy in the early 1970s but were also better able to substitute out of energy and into other inputs during the first round of energy price increases. As a result, by the mid-1970s larger plants had become more intensive energy users. Thus, later energy price increases probably had a greater adverse impact on the production costs of larger plants in manufacturing.  相似文献   

8.
This study shows how scale economies, initial size differences among firms, potential competition, and adjustment costs may influence the entry of firms into a dynamic oligopoly. It also examines the effects of these factors on the final size distribution of firms in an industry, and on the welfare levels of consumers and producers. We find that low to moderate scale economies are insufficient for Cournot-Nash competition to drive small firms from the market. Only when scale economies are quite high will the distribution of firm sizes become degenerate. Potential competition and the size of incumbent firms' capital stocks are additional barriers to entry. The welfare conclusion is that there may be a government role to preserve potential competition, but also to dissuade small firms from entering certain markets where there are economies of scale.  相似文献   

9.
Government spending is disaggregated into investment and consumption components to investigate both theoretically and empirically whether public sector consumption and investment spending crowd out private sector expenditures in the same categories. The hypothesis is that the composition of public sector expenditures may also be important in influencing the composition of private expenditures, rather than just the total level of public expenditure. The empirical results do not indicate that public expenditures in these two categories significantly influence their private sector counterparts.  相似文献   

10.
In this paper a single equation inventory investment model is estimated for the United States retail sector. Monthly data for the 1970s are utilized. In estimating the model it is alternatively assumed that expectations were formed according to a seasonal model, to perfect foresight, and to a narrowly rational expectations model. We find that a model in which expected sales and the expected rate of inflation are narrowly rational can explain most of the variation in retail inventory investment during the time period studied. The results of the estimation imply that retailers have a relatively short forecast horizon, that they can react quickly to either unexpected sales or to a deviation of actual from desired inventory stocks, and that an increase in the real of interest has a statistically negative impact on retail inventory investment.  相似文献   

11.
    
The concept of operating leverage generally has been visualized in the context of linear break-even analysis. This paper evaluates the properties of two measures of the degree of operating leverage using a more general short-run microeconomic model of the firm. In this model, the degree of operating leverage is related positively to the price elasticity of demand for a firm's output, to its elasticity of supply for an input, and to its output elasticity. In addition, operating leverage measures are usually derived from models inconsistent with firm wealth maximizing behavior and are too simplistiic for complex models with stochastic demand, supply, and production functions.  相似文献   

12.
This paper reexamines the error learning hypothesis, taking explicit account of both the measurement error in forward rates and the nonstationary of liquidity premiums. The evidence is consistent with the model, but with lower explanatory power than the previous results of Meiselman (1962) and Van Horne (1965).  相似文献   

13.
This article explores the market response of deep discount corporate bonds to the reduction in the capital gains tax rate incorporated into the Revenue Act of 1978. Such tax change should have increased the desirability of assets acquired for capital gains potential, such as deep discount bonds. Examining a time series of prices and returns for a sample of deep discount corporate bonds and a control group of comparable duration and credit risk corporate bonds selling at or near par did indeed provide evidence of a market price reaction. Moreover, the price changes for the deep discount bonds occurred well in advance of the implementation of the tax change.  相似文献   

14.
When the firm is uncertain about the efficiency units of labor that it employs, some organizational forms—franchise, owner-operated, and multiplant firms— may be more profitable than others. As a result, particular organizational forms may dominate an industry with uncertain inputs. Conversely, various organizational forms may be selected by a company selecting producing units that will maximize the decision maker's expected utility of profits. This paper offers an alternative view of firm attributes associated with x-efficiency.  相似文献   

15.
Several recent empirical studies have used the residuals from estimated earnings equations as explanatory variables in models of on-the-job search and quit behavior. It has often been argued that the coefficients on these “market differential” variables are biased downward because estimated residuals overstate the “true” quasi-rent or disincentive to search for alternative employment. This argument—that observed wages include implicit payments for workplace and person-specific characteristics not fully specified in earnings models— ignores an opposing bias associated with the value of being able to reject unattractive wage offers. As a consequence, there is no unambiguous a priori relationship between estimated wage residuals and the theoretical expected gain from search. Some evidence bearing on the relative magnitudes of the two biases is discussed.  相似文献   

16.
Barriers to mobility are commonly believed to partition blue-collar jobs into skilled, semiskilled, and unskilled components. This paper develops a model based in large measure on the classical gravity model for purposes of ascertaining mobility pattern determinants and for testing for the presence and form of mobility barriers. The model is implemented on a 1965–1970 sample data of male mobility among 60 intermediate-detailed blue- collar occupations. The empirical results reveal that mobility patterns in the blue-collar component conform well with neoclassical theoretical expectations. Very little support is found for the view that the blue-collar labor market is highly structured or segmented in its operations through the mobility process.  相似文献   

17.
This paper uses the example of trading stamps to examine a model of competitive nonprice marketing strategies. A concept borrowed from ethology, polymorphic equilibrium, is developed and used to explain salient features of trading stamp use by retail firms. The results contribute to an understanding of why virtually identical firms may optimally choose quite different competitive strategies. The paper also demonstrates the possibility of cyclical movements in the proportion of firms that adopt nonprice strategies such as the use of trading stamps.  相似文献   

18.
    
This article presents the appropriate rate by which to discount a constant, certain, infinite stream of future payments: that is, the yield on a noncallable perpetuity or consol. The American consol series is a daily risk-free “pure” long term interest rate which is undistorted by tax effects, call premiums, and varying duration and reinvestment assumptions. If Hamburger had used the American consol series instead of the U.S. Government Long Term Bond Rate in his money demand function, he would have found more of the “missing money.” His average error (actual minus predicted money demand) as a percentage of actual money demand would have been reduced from 1.43% to 0.93% a 35% error reduction.  相似文献   

19.
20.
    
Relatively high estimates of the welfare cost of monopoly power in U.S. manufacturing industries have been obtained by economists who use the Lerner equation to estimate this welfare cost from profit data. These Lerner equation loss estimates are appropriate for a monopoly with constant costs and linear demand. But if the industry is an oligopoly in a Nash-Cournot equilibrium, the Lerner equation loss estimates can be more than twice as large as the actual welfare gain that would result from the elimination of monopoly power. Partial and general equilibrium examples are presented to illustrate the nature of these estimation errors.  相似文献   

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