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| Isengildina-Massa, Olga; Sharp, Julia L.; Zhang, Jing; Campbell, Wallace A.. |
| This study evaluates the accuracy of USDA interval forecasts for corn, soybean, and wheat prices using Christoffersen’s (1998) tests for unconditional coverage, independence and conditional coverage adjusted for asymmetries in tail probabilities. The findings of this study demonstrate that due to uneven distribution of forecast misses around the interval, calibration of soybean price forecasts in several cases was rejected by basic coverage tests (suitable for symmetric intervals) but not rejected by the tests adjusted for asymmetry. Thus these forecasts were asymmetric but accurate. Symmetry was not a limiting assumption for corn and wheat interval forecast accuracy. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2010 |
URL: http://purl.umn.edu/61731 |
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| Huang, Zuhui; Zhang, Jing; Chen, Kevin Z.. |
| The objective of this paper is to describe different types of value chain, to capture value added activities of each chain, to discuss the organizational and institutional link in each value chain and its implications for the role of small farmers. We focus on two counties in Hebei and Zhejiang of China. Taking pear for example, analysis of value chain is conducted using data of representative samples of pear value chain. For each chain, value added activities, cost composition, profit distribution, organizational and institutional linkages are illustrated, and corresponding conclusions are indicated. After a systematic analysis of organizational and institutional linkage and value adding activities of every chain as well as cost-benefit analysis of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Value Chain; Smallholder; Pear; Industrial Organization; L1. |
| Ano: 2009 |
URL: http://purl.umn.edu/49946 |
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| Zhang, Jing. |
| On the basis of offering a definition of New Rural Communities (NRCs), the paper analyzes the Values of New Rural Communities and argues that the construction of NRCs is able to contribute to the enhancement of the comprehensive agricultural production capability as well as the development of social productivity Meanwhile the incomes of the Rural residents can be boosted, which denotes the realization of a harmonious society where the achievements of China's reform and development are shared by each citizen. Moreover, the construction of NRCs facilitates the economization of land use and thus improves the overall living standard of the residents, while helping to cut the administrative cost and promote democracy at the primary level. This paper also points... |
| Tipo: Article |
Palavras-chave: Balancing urban and Rural areas; New Rural Communities; Harmonious development; China; Agribusiness. |
| Ano: 2011 |
URL: http://purl.umn.edu/119695 |
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| Zhang, Jing; Hertzler, Greg; Burton, Michael P.. |
| Australia by using the data from the newly finished National Survey of Recreational Fishing (2000/2001)(NSRF). There are a number of findings. 1. Socio-economic characteristics of anglers didn’t affect their catch of high quality fish (prize fish, reef fish or key-sport fish) as much as their catch of low quality fish (table fish and butter fish). 2. For a given trip, anglers were willing to pay $1.63, $26.03, $1.03 and $0.53 for the first prize fish, reef fish, key-sport fish or butter fish caught, respectively. 3. The top four valuable fishing sites in the survey period were Geraldton, Esperance, Albany and Broome, with annual access values of $6.45 million, $4.52 million, $3.47 million and $2.47 million, respectively. 4. The per trip estimates are of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Recreational fishing; Random utility model; Non-market valuation; Production Economics; Research Methods/ Statistical Methods. |
| Ano: 2003 |
URL: http://purl.umn.edu/58275 |
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