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Interindustry, cross-sectional studies of structure and performance assume, according to the market power doctrine, that structural variables are exogenous to performance, though this notion has been questioned at different times by a number of industrial organization economists. This study uses a time series approach to test the validity of this notion at the line of business level. Sims' causality tests were performed for three separate firms and the interrelationships over time between the firm's market share and rate of return were estimated (i.e., do changes in a firm's market share occur prior to changes in the firm's rate of return or do changes in the firm's rate of return occur prior to changes in a firm's market share). Two of the three firms examined failed to exhibit the unidirectional causality assumed by the conventional structure-performance paradigm. These results, even though derived from a limited number of undiversified firms, suggest that the issue of causality must be settled before the functional form of the model can be specified.  相似文献   
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Technological advancement has brought dramatic changes to most industries. As a result, the pressure to compete has intensified tremendously. This is especially evident in the information service (IS) industry where the need of companies to expand their employees' competence set (CS) becomes critical. This study investigated whether CS expansion in the IS industry is a planned behavior moderated by individual style of action control. A mail survey was carried out to collect data from the IS companies in Taiwan. A total of 190 valid samples were obtained. The results of analyses showed that our proposed model provided a good fit to the data. Attitude tendency (AT), subjective norms (SN), and computer/information technology (IT) self-efficacy positively affected employees' intentions of expanding the CS. Moreover, we found that the action control style moderated the effects of AT, SN, and computer/IT self-efficacy on behavioral intention. The implications of this study as well as its limitations are discussed.  相似文献   
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This paper examines the effects of inflation uncertainty on the lag structure between money growth and stock prices. Using a varying parameter model and the Livingston survey data 1 1 Livingston, J. A., “Inflation Expectations Surveys.” Published twice annually, Philadelphia Sunday Bulletin (1948–1971), Philadelphia Inquirer (1972 on).
as a proxy for inflation uncertainty, the results suggest that only current money growth influences stock prices. However, a large percentage of this positive impact can be expected to be offset by inflation uncertainty prevailing at the time.  相似文献   
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We employ a discrete choice experiment to elicit demand and supply side preferences for insurance‐linked credit, a promising market‐based tool for managing agricultural weather risks and providing access to credit for farmers. We estimate preference heterogeneity using primary data from smallholder farmers and managers of lenders/insurers combined with household socio‐economic survey data in Kenya. We analyse the choice data using maximum simulated likelihood and Hierarchical Bayes estimation of a mixed logit model. Although there are some similarities, we find that there is conflicting demand and supply side preferences for credit terms, collateral requirements, and loan use flexibility. We also analyse willingness to buy and willingness to offer for farmers and suppliers, respectively, for the risk premium for different attributes and their levels. Identifying the preferred attributes and levels for both farmers and financial institutions can guide optimal packaging of insurance and credit providing market participation and adoption motivation for insurance‐bundled credit product.  相似文献   
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This article addresses the problem of collateral‐free lending in the context of agricultural development. We investigate a viable alternative to traditional credit products through the development of risk‐contingent credit for operating loans and farm mortgages and apply the concept to agricultural loans for pulse crops in India. Risk‐contingent credit mitigates business and financial risk by reducing debt obligations depending on the embedded commodity options whose payoffs are linked with commodity price fluctuations. We analyze daily commodity spot prices for pulse crops in India and show how risk‐contingent structured financial instruments can be priced in practice.  相似文献   
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Weather-related agricultural risks and limited access to credit are serious impediments to agricultural productivity and growth in developing countries. This paper describes a novel insurance linked credit model piloted in Kenya, where insurance markets are effectively absent, and farmers do not borrow because of the risk of losing their collateral. One of the challenges in deigning bundled credit products, in the absence of traded securities, is the actuarial pricing and risk rating of the insurance and the loan product. We develop a rainfall linked risk-contingent credit that transfers drought risk related perils from borrower to lender via insurance mechanism that provide a balance between business and credit risks for smallholder farmers. We describe the methodology used to design and rating of a risk-contingent structured operating agricultural credit instrument using CHIRPS rainfall data from 1981–2016 in Kenya. We illustrate the use of Monte Carlo methods to risk modelling that can be integrated within the general insurance and credit rating framework. The innovative design and methodology presented in this paper are as important as the product delivery mechanism and will be of interest to specialists in development economics and agricultural finance.  相似文献   
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The interrelationship between concentration (CR) and price cost margins (PCMs) are measured to test whether changes in structure (as measured by CR) occur prior to changes in performance (as measured by PCMs), or whether changes in PCMs occur prior to changes in CRs. The former relationship is consistent with the market power “doctrine,” while the latter is consistent with the “interventionist” view of the monopoly problem. A sample of 41 four-digit SICs having relevant product markets and consistent concentration ratios were collected for the intercensus periods from 1947–1977. Two generalized least square models were estimated, each containing a lead, concurrent and lagged independent variable for two functional forms: CRs as a function of: PCMs and PCMs as a function of CRs. The introduction of the lead variable in both functional forms or equations to the corresponding unrestricted model added significantly to explaining variations in the dependent variables. This result implied that a bidirection relationship existed between concentration and profits and that both the price elevation and cost reduction hypothesis have wilidity. This same time series approach could be applied to individual industrles or a dominnt firm within a industry. If a single hypothesia beat deacribed the firm’s altructure and performunce, evidence used in anlltrual euforcement could be simplified considerably.  相似文献   
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