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| Registros recuperados: 34 | |
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| Zhang, Linxiu; Wang, H. Holly; Rozelle, Scott; Yan, Yuanyuan. |
| Although health is an important factor in economic development, millions of China's rural residents have no medical coverage. Nearly 10 percent of those that were sick in rural China consciously did not seek medical care, mostly because of financial constraints. More than 25% of rural residents are dissatisfied with their village's health system. In response to this deteriorating situation, a new cooperative medical system (NCMS) was initialized in rural China in 2003 by the government. However, after two years of trials, there has been no household-based, economic analysis of the program. This paper provides one of the first. Although where introduced, most rural residents voluntarily participate, there are many problems with the program. First, at least... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Rural Health; Insurance; Targeting; Design Problems; China; Health Economics and Policy; I11; O15; O53. |
| Ano: 2006 |
URL: http://purl.umn.edu/25586 |
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| Liu, Qinghua; Wang, H. Holly. |
| This paper uses of Johansen's multivariate cointegration test to test for egg market integration of six Pacific states, Washington, Idaho, Oregon, California, Nevada, and Arizona. We conclude that eggs from these states substitute for each other to some degree, and arbitrage possibilities through trade bind the egg prices. In addition, the Law of One Price (LOP), the case of perfect integration, is examined by testing the linear combination of cointegration vectors. Test results show that the LOP is not satisfied even though the egg markets in the six Pacific states are highly integrated. Arizona egg prices, California egg prices, and Washington egg prices play dominant roles on the Pacific egg market in the long run. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Demand and Price Analysis; Livestock Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/21934 |
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| Chen, Xiaomei; Wang, H. Holly; Mittelhammer, Ronald C.. |
| The linear two-moment mean-variance (MV) model has been widely used in finance and economic decision analysis as an approximation of Von Neumann-Morgenstern expected utility (EU) model. The introduction of third or higher moments not only can improve the accuracy of the approximation, but is also suitable to represent investors¡¯ skewness preference (prudence) with the latter supported by empirical evidence. The goal of this paper is to develop a general MVS model and compare it and the traditional MV model against the EU model in the setting of an individual producer hedging in the futures market. Results show: 1) the derived linear MVS model maintains the analytical convenience of MV model, 2) it can generate different results as MV, 3) it approximate... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Risk and Uncertainty. |
| Ano: 2006 |
URL: http://purl.umn.edu/21485 |
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| Fang, Xingming; Hu, Xiaoping; Wang, H. Holly. |
| Whether the high economic growth of China is sustainable is the matter of interest to the public, government and academic circle of China and meanwhile it catches the attention of the world because the development of China has been exerting increasing impact on the world economy. Since the high economic growth of China has been promoted by heavy and chemical industry (HCI) to a great extent, which resulted in high consumption of energy resource, high consumption of mineral resources and high emission of pollutants (the “triple highness”), the sustainability of high economic growth of China depends on a sustainable growth road for China’s HCI and effective control on the “triple highness”. We find that the contributing factors of the “triple highness” are... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Economic growth; Energy; Resource; Pollution; International Development; Resource /Energy Economics and Policy; O10; O11. |
| Ano: 2008 |
URL: http://purl.umn.edu/6274 |
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| Makus, Larry D.; Wang, H. Holly; Chen, Xiaomei. |
| Risk management strategies (market and insurance based) are evaluated for selected small grain producers in the Pacific Northwest using expected utility maximization. Equivalent variation (EV) compares alternative risk management portfolios to cash sales under specified restrictions and conditions. Resulting EV's are strongly influenced by government payments, and hedging-based strategies are not used when counter cyclical payments are included in government programs. Optimum risk management portfolios include extensive coverage by insurance-based products only when such products have premiums that are heavily subsidized, or have premiums with no significant expense load. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Risk and Uncertainty. |
| Ano: 2003 |
URL: http://purl.umn.edu/22257 |
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| Zheng, Qiujie; Wang, H. Holly; Shi, Qinghua. |
| Modeling crop yield distributions has been an important topic in agricultural production and risk analysis, and nonparametric methods have gained attention for their flexibility in describing the shapes of yield density functions. In this article, we apply a nonparametric method to model joint yield distributions based on farm-level data for multiple crops, and also provide a way of simulation for univariate and bivariate distributions. The results show that the nonparametric models, both univariate and bivariate, are estimated quite well compared to the original samples, and the simulated empirical distributions also preserve the attributes of the original samples at a reasonable level. This article provides a feasible way of using multivariate... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Yield distribution; Multi-variate nonparametric; China; Farm-level; Risks; Farm Management; Risk and Uncertainty. |
| Ano: 2008 |
URL: http://purl.umn.edu/6509 |
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| Wang, H. Holly; Zhang, Hao. |
| Risk theory tells us if an insurer can effectively pool a large number of individuals to reduce the total risk, he then can provide the insurance by charging a premium close to the actuarially fair rate. There is, however, a common belief that the risk can be effectively pooled only when the random loss is independent, so that crop insurance markets cannot survive without government subsidy because crop yields are not independent among growers. In this paper, we take a a spatial statistics approach to examine the effectiveness of risk pooling for crop insurance under correlation. We develop a method for evaluating the effectiveness of risk pooling under correlation and apply the method to three major crops in the US: wheat, soybeans and corn. The empirical... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Risk and Uncertainty. |
| Ano: 2002 |
URL: http://purl.umn.edu/19633 |
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| Du, Wen; Wang, H. Holly. |
| This paper applies the generalized expected utility (GEU) approach developed by Epstein and Zin (1989, 1991) to dynamic agricultural risk analysis. We explore the impacts of alternative preference parameters of farmers including of risk aversion, time preference, and intertemporal substitutability on their optimal risk management portfolio selection. Furthermore, we extend the GEU model by introducing a welfare measure, the equivalence variation, and investigate the impacts of U.S. government programs and market institutions on farmers' risk management decisions. We find farmers optimal hedge ratio is sensitive to changes in the preferences and the effects of these preferences changes are intertwined. The policy impact analysis shows government payment... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Risk and Uncertainty. |
| Ano: 2004 |
URL: http://purl.umn.edu/36235 |
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| Wang, H. Holly; Young, Douglas L.; Camara, Oumou M.. |
| Logit and ordered probit analyses were used to identify factors associated with reduced tillage adoption, continuous spring cropping, and the number of changes made in response to wind erosion. Contrary to previous results for water erosion control, simple perception of a wind erosion problem or membership in a particular socioeconomic category did not significantly explain adoption of wind erosion control practices, but participating in a targeted educational program did. This educational program: (a) highlighted the threats of wind erosion to human health and to soil productivity, and (b) described specific potentially profitable farming practices for solving the wind erosion problem. |
| Tipo: Journal Article |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2000 |
URL: http://purl.umn.edu/30906 |
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| Chen, Xiaomei; Wang, H. Holly; Makus, Larry D.. |
| This paper empirically examines the income risks for Pacific Northwest apple growers, both conventional and organic. Current yield based apple production insurance, the Growers Yield Certification (GYC), and hypothesized revenue based insurance are also examined for their risk management effect on growers. Results show that organic apple production is more risky but has higher expected return than its conventional counterpart. The current GYC is subsidized and subsidized more for organic growers. However, the current low price selection levels prevent these programs from offering effective risk reducing effect, and they also prevent the hypothesized revenue insurance from showing its advantage over yield insurance as in the case of other major field... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Risk and Uncertainty. |
| Ano: 2007 |
URL: http://purl.umn.edu/9381 |
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| Wang, H. Holly. |
| Current country-based group crop insurance, i.e., Group Risk Plan (GRP), is not an effective risk-reducing tool in counties where natural conditions are different across the area. Using only the historical yield information, a statistical approach is developed to group farmers by their yield similarity rather than linking them based on their association with a particular county. The cases of Washington State wheat farms and Iowa corn farms are the focus of this investigation. Sub-county or cross-county zones (clusters) are identified, and each farm is classified into a cluster where individual farm identification remains unknown. To improve risk-management and cost effectiveness of the crop insurance instrument, we propose implementation of zone-based GRP... |
| Tipo: Journal Article |
Palavras-chave: Risk and Uncertainty. |
| Ano: 2000 |
URL: http://purl.umn.edu/30904 |
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| Ortega, David L.; Wang, H. Holly; Wu, Laping. |
| China’s transition into a developed economy is driving changes in consumer preferences and demand for foods. The objective of this study is to assess and measure consumers’ preferences for and attitudes toward imported pork in urban China. Estimated logit models based on a consumer survey conducted in 2008 reveal that individuals’ age, shopping location, and food safety concerns significantly influence their willingness to pay for U.S. pork. Factors affecting purchasing behavior of Western-style pork cuts versus traditional Chinese cuts are also evaluated. Consumers’ food safety concerns were linked to a previous lean-meat additive scare and a lack of confidence in the Chinese food inspection system. |
| Tipo: Journal Article |
Palavras-chave: Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Livestock Production/Industries. |
| Ano: 2009 |
URL: http://purl.umn.edu/99757 |
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| Registros recuperados: 34 | |
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