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| Registros recuperados: 16 | |
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| Shi, Guanming; Stiegert, Kyle W.; Chavas, Jean-Paul. |
| In this paper, we investigate substitution/complementarity relationships among products sold with different bundled characteristics and under different vertical arrangements. Our conceptual model demonstrates the interactive price impacts emanating from product differentiation, market concentration and market size. The model is applied to the U.S. cottonseed market using transaction level data from 2002 to 2007. This market has been impacted structurally in numerous ways due to the advances and the rapid adoption of seeds with differing bundles of biotechnology traits and vertical penetration emanating from the biotechnology seed industry. Several interesting findings are reported. The econometric investigation finds evidence of sub-additive pricing in the... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Marketing; Research Methods/ Statistical Methods. |
| Ano: 2009 |
URL: http://purl.umn.edu/92248 |
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| Shi, Guanming; Chavas, Jean-Paul; Stiegert, Kyle W.. |
| This paper investigates bundle pricing under imperfect competition. In a multiproduct context, we first examine how substitution/complementarity relationships among products can affect pricing. This is used to motivate multi-product generalizations of the Herfindahl-Hirschmann index (GHHI) capturing cross-market effects of imperfect competition on bundle pricing. The GHHI model is applied to pricing of conventional and patented biotech seeds in the US from 2000-2007. One major finding is that standard component pricing in biotech traits is soundly rejected in favor of sub-additive bundle pricing. This result is consistent with the presence of scope economies in the production of genetic traits. The econometric estimates show how changes in market... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Agribusiness; Demand and Price Analysis. |
| Ano: 2008 |
URL: http://purl.umn.edu/92212 |
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| Shi, Guanming; Chavas, Jean-Paul; Stiegert, Kyle W.. |
| This paper investigates the pricing of patented traits in the U.S. hybrid corn seed market under imperfect competition. In a multiproduct context, we first examine how substitution/complementarity relationships among products can affect pricing. This is used to motivate multi-product generalizations of the Herfindahl-Hirschman index (GHHI) capturing cross-market effects of imperfect competition on bundle pricing. The GHHI model is applied to pricing of conventional and patented biotech seeds in the US from 2000-2007. One major finding is that standard component pricing in biotech traits is soundly rejected in favor of subadditive bundle pricing. The econometric estimates show how changes in market structures (as measured by both own- and cross-Herfindahl... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Marketing; Research Methods/ Statistical Methods. |
| Ano: 2009 |
URL: http://purl.umn.edu/92249 |
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| Wang, Qingbin; Shi, Guanming; Zheng, Yi. |
| While China's economic reform has brought about significant economic growth, there is a considerable debate about the impact of such market-oriented reform on income and welfare distributions. This paper examines the changes in income and welfare distributions in urban China from 1981 to 1998 and discusses implications for China's food consumption patterns and trade behavior. While the Lorenz curves estimated using Kakwani's interpolation method indicate that the level of income inequality in urban China has increased significantly since 1981, welfare comparisons based on generalized Lorenz curves suggest that the rise in real average income has more than compensated for the increase in inequality and has therefore brought about continuous improvement... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Community/Rural/Urban Development; Food Consumption/Nutrition/Food Safety; International Relations/Trade. |
| Ano: 2000 |
URL: http://purl.umn.edu/21767 |
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| Shi, Guanming; Chavas, Jean-Paul. |
| This paper investigates differentiated product pricing and vertical organization under imperfect competition. We develop a conceptual model of multiproduct pricing to examine how the exercise of market power varies with substitution/complementarity relationships among products and vertical structures. The analysis is applied to US soybean seed pricing during the period between 2000 and 2007. It considers two vertical structures: Vertical integration and licensing. We find evidence that vertical organization has significant effects on prices. These effects vary depending on the institutional setup and the bundling of genetic material. The empirical evidence shows that, in a multi-market context, complementarity and economies of scope can mitigate the price... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Demand and Price Analysis; Research Methods/ Statistical Methods. |
| Ano: 2010 |
URL: http://purl.umn.edu/92228 |
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| Registros recuperados: 16 | |
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