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| Zheng, Xiaoyong; Zhen, Chen; Wohlgenant, Michael K.. |
| We take a structural approach to examine the effects of larger container size on consumption of carbonated soft drinks---using Nielsen Company's Homescan data on household purchases for the years 2004 through 2006. Our results show that by removing the price discount implicit in packages with larger container size, the average unit price the two households pay for CSD products increase and hence both households (both the low income and the high income) reduce their annual consumption of soft drinks by about 75%. This reduction is due to a combination of reduced number of purchases and switching to products with less number of bottles/cans. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Consumer/Household Economics; Food Consumption/Nutrition/Food Safety. |
| Ano: 2008 |
URL: http://purl.umn.edu/6203 |
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| Robinson, Christina A.; Zheng, Xiaoyong. |
| This study examines the dynamic relationship between a household’s Food Stamp Program (FSP) participation and the extent to which children in the household are overweight or obese. In contrast to previous studies employing static models, our results suggest that FSP participation significantly affects the deviation of current body mass index (BMI) from the ideal level in older male children who are currently underweight and for older female children who are already overweight. For older male children, the effect is desirable; for older females, however, our findings indicate that FSP participation has an adverse effect on their health and may contribute to being overweight or obese. |
| Tipo: Journal Article |
Palavras-chave: Child obesity; Food Stamp Program; Food Consumption/Nutrition/Food Safety. |
| Ano: 2011 |
URL: http://purl.umn.edu/105509 |
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| Choi, Hee Jung; Wohlgenant, Michael K.; Zheng, Xiaoyong. |
| This study analyzes the factors that determine the demand for milk products and the consumer benefits from organic milk introduction. Estimating a structural model, the welfare effect is decomposed into two parts: the effect of having an additional product and the effect from the price changes in existing products due to the enhanced competition. In order to take heterogeneous tastes for different product characteristics into account, the unit of analysis is defined at the Universal Product Code (UPC) level and the demand is estimated for each household. The estimates from mixed logit demand approach indicate that households with younger head, higher income or higher education value more for the organic attribute. The distribution of estimated variety... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agribusiness; Consumer/Household Economics; Demand and Price Analysis. |
| Ano: 2011 |
URL: http://purl.umn.edu/103550 |
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| Vukina, Tomislav; Zheng, Xiaoyong. |
| In this paper we show that sorting different ability contestants in piece rate tournaments into more homogeneous groups alters incentives for agents to exert effort. In particular we show that for a given mean of the tournament group's ability parameters, larger variance (more heterogeneous agents) induces higher optimal effort. This implies that the principal can actually gain from heterogenizing the tournament groups. On the other hand, the effect of this change on growers' welfare is unclear because higher effort leads to higher productivity and hence higher payment, but also increases the cost of effort. Using broiler production contracts settlement data we empirically estimate a fully structural model of a piece rate tournament game with heterogeneous... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2008 |
URL: http://purl.umn.edu/6540 |
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| Vukina, Tomislav; Zheng, Xiaoyong. |
| In this paper we propose a game-theoretic model of a rank-order tournament with private information and characterize its equilibrium solution. The model captures many important features of the production contracts once observed in the poultry industry. We use the contract settlement data from a poultry company who used rank-order tournaments to remunerate their contract growers and estimate a fully structural model of a symmetric Nash-equilibrium of this game. We show that growers' equilibrium effort depends on three factors: the spread in piece rates between the performance brackets, the number of players in each tournament, and the number of performance brackets used. We use the estimates of the productivity shocks density to simulate how changes in... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2006 |
URL: http://purl.umn.edu/21059 |
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| Vukina, Tomislav; Zheng, Xiaoyong. |
| Using unique panel data on individual transactions between buyers and sellers in the spot market for live hogs, we found a large degree of intra-day price dispersion. Motivated by this empirical puzzle, we offer an explanation which is rooted in the bargaining with search theory. We formulate three hypotheses involving the role of farmers’ search cost, bargaining parties’ patience, and asymmetric information that we believe can explain the observed phenomenon. Empirical analysis shows strong support for all three of the stated theoretical predictions, indicating that the bargaining with search theory explains at least 31 percent of the observed intra-day price variation in this market. |
| Tipo: Journal Article |
Palavras-chave: Intra-day price dispersion; Bargaining theory; Search cost; Asymmetric information; Demand and Price Analysis. |
| Ano: 2010 |
URL: http://purl.umn.edu/95603 |
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