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981.
In rational, efficiently functioning and complete markets, returns on derivative and underlying securities should be perfectly contemporaneously correlated. Due to market imperfections, one of these markets may reflect information faster. The use of high-frequency data and the choice for a small unit time interval to measure these lead-lag relations comes at the cost of some or many missing observations, causing traditional estimators to either under- or overestimate covariances and correlations. We use a new estimator to estimate lead-lag relationships between the cash AEX index, options and futures. We find that futures returns lead both options and cash index returns by approximately 10 minutes. The relationship between options and the cash market is not completely unidirectional. 相似文献
982.
V. Eldon Ball Jean‐Pierre Butault Carlos San Juan Ricardo Mora 《Agricultural Economics》2010,41(6):611-627
This study looks at international competitiveness of agriculture in the European Union and the United States. The most intuitive concept is that of price competitiveness. We calculate relative prices for 11 member states of the European Union and the United States for the period 1973–2002. We assume that markets are perfectly competitive and in long‐run equilibrium, so that the observed price always equals average total cost, as measured by the cost dual to the production function. This assumption is used in our calculation of relative competitiveness and productivity gaps between the European Union and the United States and in our decomposition of relative price movements between changes in relative input prices and changes in relative productivity levels. 相似文献
983.
This article analyzes households’ choice on tea varieties in Vietnam by using a multinomial logit model. The modeling takes into account the issue of unobserved individual heterogeneity and the endogeneity of some explanatory variables (use of chemical and organic fertilizers). The results show that important factors influencing the decision to adopt one type of tea varieties include income, age, household size, farming contract, and use of organic fertilizers, but also membership of professional associations such as the Tea Association and the Farmers Union. 相似文献
984.
Jean‐Philippe Colin 《Journal of Agrarian Change》2017,17(1):144-165
This paper tackles the broad issue of agrarian contracts, property rights and conflicts in the context of rural Côte d'Ivoire. Since the beginning of the 2000s, a new type of contractual arrangement has been developing rapidly: the ‘Plant & Share’ contract. Through such a contract, a landowner provides the land to a farmer who develops a perennial tree crop plantation; when production starts, the plantation, the plantation and the land, or the product is shared. The aim of the paper is to discuss the conflictive features of the arrangement. I argue that this contract, in spite of its potential for tensions and conflicts, constitutes an alternative to the much more conflictive land sales that currently dominate extra‐familial land transfers in the country. 相似文献
985.
Spatial determinants of productivity growth on agri‐food Spanish firms: a comparison between cooperatives and investor‐owned firms
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MCarmen Martínez‐Victoria Mariluz Maté Sánchez‐Val Narciso Arcas‐Lario 《Agricultural Economics》2018,49(2):213-223
This study analyses the effect of the spatial factor, location, and interaction effects among peer companies, on the productivity growth of agri‐food companies in Spain. With this aim, we build a productivity growth index and apply a multiequational Seemingly Unrelated Regression on a sample of 344 Spanish cooperatives and investor‐owned firms for the period 2010–2012. Our findings show that agri‐food firms are influenced by spatial factors finding interesting differences between cooperatives and investor‐owned firms. With regard to the geographical location, cooperatives in the western of Spain show higher productivity growth rates, whereas investor‐owned firms in the northeast of Spain present better results. The interaction effect among closer peer companies is also a relevant factor to determine the productivity growth in agri‐food companies. This factor is more relevant for cooperatives than for investor‐owned firms. 相似文献
986.
In Malaysia, the participation of women in the labor market has increased over time. However, occupational segregation and wage differentials continue to be prevalent between men and women in the labor market. The present paper investigates gender‐related occupational segregation and wage differentials based on data collected from 7135 working households in Peninsular Malaysia in 2011. The wage decomposition model introduced by Brown et al. (1980) is used to examine the determinants of gender‐related wage differentials. The results suggest that differences within occupations account for the largest portion of the wage gap between men and women. The results also indicate that wage discrimination within occupations plays an important role in the gender wage gap, while sample selection bias plays an important role in the examination of gender wage gaps. 相似文献
987.
This paper investigates whether the macroeconomic performance of a small- open economy depends on the choice of exchange rate regimes. Hong Kong and Taiwan - two economies with many similar macroeconomic characteristics, but different in their choices of exchange rate regimes - provide a good setting to study the relation between the choice of exchange rate regime and macro-economic performance. We examine the basic facts of growth and inflation and the coefficients' stability of their vector autoregression (VAR), as well as cyclical characters of other aggregate variables in Hong Kong and Taiwan. Our empiric finding indicates that macroeconomic performance is not systematically related to exchange rate regimes. 相似文献
988.
Although a growing body of literature has touted e-participation as a means of facilitating greater citizen participation in policy decision-making processes, little is known about the driving forces behind citizens’ use of e-participation. Based on a literature review of social capital and citizen participation, this study develops and tests a model proposing that three dimensions of social capital and three dimensions of citizen participation management should be positively associated with e-participation in agenda setting. Using data from a Korean e-participation survey conducted in 2009, we found that citizens tend to be more active e-participants when they have greater trust in government and are weakly tied to offline social groups. We also found that citizen participants’ perception of government responsiveness to their input can facilitate their e-participation. The study findings imply that local governments should pay more attention to the function of public trust in local government and provide quality feedback in response to citizen input. They should also be sensitive to how the social factors of e-participants can facilitate involvement in agenda setting. 相似文献
989.
Roger Lee Mendoza 《Journal of medical economics》2017,20(4):315-317
Barriers to entry in healthcare markets constitute one of the overriding concerns of health economists. The recent enactment of the 21st Century Cures Act in the United States reduces statutory entry barriers to the discovery, development, testing, and licensing of drugs and medical devices. Drug and device makers also see the burdensome and time-consuming requirements of the Food and Drug Administration?s approval process as key barriers to lowering the costs of their products, considering it takes a decade of research amounting to $1 billion just to bring a single drug to the market. Along with novel opportunities for medical product innovation and faster treatment of diseases, the expedited approval process carries with it contentious challenges involving the safety, efficacy and value of drugs and devices. The ensuing trade-offs and unintended consequences of such a regulatory game-changer bring to the fore one of the most enduring debates between medicine and economics: Whether – or to what extent – cost and efficiency factors affect clinical inquiry into possible solutions to human illnesses. The practical and theoretical contributions of pharmacoeconomics should enlighten contemporary and future issues and discussions surrounding the implementation of this landmark legislation. After all, despite its undeniably good intent and far-reaching significance, no law can ever be perfect. 相似文献
990.
This article applies the GMM techniques for dynamic panels using bank-level data for 61 countries over the period 1992 to 2006 to re-investigate the impact of banking competition on profitability. The extant literature, which ignores influence factors, presents ambiguity towards the impact of banking competition on profitability. However, when the effects of a broad range of factors are taken into consideration, five conclusions are reached. First, along with the change in market structure, a higher degree of activity restriction enhances banks’ profits. Second, restrictions on the rights of commercial banks to engage in securities, insurance, and other non-banking-related business, along with restrictions on the entry of foreign banks into these markets, weaken the positive relationship between banking competition and profits. Third, a higher degree of efficiency within the judicial system and the added protection afforded to investors may weaken or else have no impact on the positive relationship. Fourth, the positive relationship may weaken in countries having a sound financial system or high income per capita. Finally, greater competitive pressure facing banks may weaken or eliminate the impact of banking competition on profit. 相似文献