@article{he_yu_zheng_2023, title={The effect of eating restaurant prepared food on BMI: evidence from China during the COVID-19 pandemic}, ISSN={["1466-4283"]}, DOI={10.1080/00036846.2023.2216440}, abstractNote={Leveraging the unexpected variation in the frequency of eating restaurant prepared food due to the COVID-19 pandemic, we seek to identify and estimate the causal relationship between the frequency of eating restaurant prepared food and people's BMI. We use first-differencing and instrumental variable approaches to correct for potential endogeneity bias due to both the time-invariant and time-varying unobserved factors. Our results show eating more restaurant prepared food has a positive and statistically significant effect on BMI, and in addition to other channels that have been identified in the literature, mood-boosting is another channel through which eating restaurant prepared food leads to weight gain. Heterogeneous effect analysis further shows that eating restaurant prepared food is more likely to have an impact on those people who lead a more stressful lifestyle before the pandemic.}, journal={APPLIED ECONOMICS}, author={He, Juan and Yu, Pingping and Zheng, Xiaoyong}, year={2023}, month={May} } @article{cho_zheng_2021, title={Bayesian estimation of dynamic panel data gravity model}, volume={40}, ISSN={["1532-4168"]}, DOI={10.1080/07474938.2021.1889203}, abstractNote={Abstract In this paper, we develop Bayesian estimation method for inference of dynamic panel data gravity model. Our method deals with the many zeros problem and at the same time, allows for lagged dependent variables and multiple sets of unobserved effects. We apply our Bayesian estimation algorithm to reexamine the contemporaneous effect of GATT/WTO membership on trade. We find that our dynamic gravity model fits the data better than the same model without the lagged dependent variables that is often used in the literature and trade flow in the previous period has a large and positive effect on trade flow in the current period. We also find that the GATT/WTO membership does not appear to have a contemporaneous effect on trade flow. This result is consistent with the findings ofsome studies in the literature, but not with those of others. These results show the importance of including lagged dependent variables and multiple sets of unobserved effects in gravity model estimation.}, number={7}, journal={ECONOMETRIC REVIEWS}, author={Cho, Moonhee and Zheng, Xiaoyong}, year={2021}, month={Aug}, pages={607–634} } @article{li_rejesus_zheng_2021, title={Nonparametric Estimation and Inference of Production RiskJEL codes}, volume={103}, ISSN={["1467-8276"]}, DOI={10.1111/ajae.12154}, abstractNote={This paper proposes a nonparametric approach for estimation of stochastic production functions with categorical and continuous variables, and then develops procedures that allow for inference on production risk. The estimation is based on the kernel method and the inference is based on a bootstrapping approach. We establish the asymptotic properties of our proposed estimator. Monte Carlo simulation results suggest that our proposed nonparametric procedure is more robust and outperforms other existing parametric and nonparametric methods. In addition, we empirically illustrate the proposed nonparametric approach using long‐run corn production data from university field trials in Wisconsin that examines the performance of genetically modified corn varieties. Specifically, the proposed nonparametric procedure is used to empirically examine the production risk effects of categorical genetically modified variety variables and a continuous planting density variable.}, number={5}, journal={AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS}, author={Li, Zheng and Rejesus, Roderick M. and Zheng, Xiaoyong}, year={2021}, month={Oct}, pages={1857–1877} } @article{zheng_vukina_zheng_2021, title={Risk aversion, moral hazard, and gender differences in health care utilization}, volume={46}, ISSN={["1554-9658"]}, DOI={10.1057/s10713-020-00048-x}, abstractNote={This paper uses truncated count model with endogeneity and simulated maximum likelihood estimation technique to estimate gender differences in moral hazard in health care insurance. We use the dataset that consists of invoices for all outpatient services from a regional hospital in Croatia. Our theoretical model predicts that higher risk aversion is associated with smaller ex-post moral hazard effect. If women are more risk averse than men, then the moral hazard effect due to health insurance should be lower in women than in men. After adjusting for the sample selection in the estimation, we found a statistically significant evidence of moral hazard for the general population but statistically insignificant difference in moral hazard between men and women.}, number={1}, journal={GENEVA RISK AND INSURANCE REVIEW}, author={Zheng, Yan and Vukina, Tomislav and Zheng, Xiaoyong}, year={2021}, month={Mar}, pages={35–60} } @article{park_zheng_rejesus_goodwin_2021, title={Somebody's watching me! Impacts of the spot check list program in US crop insurance}, ISSN={["1467-8276"]}, DOI={10.1111/ajae.12252}, abstractNote={Abstract}, journal={AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS}, author={Park, Sungkwol and Zheng, Xiaoyong and Rejesus, Roderick M. and Goodwin, Barry K.}, year={2021}, month={Aug} } @article{park_goodwin_zheng_rejesus_2020, title={Contract elements, growing conditions, and anomalous claims behaviour in US crop insurance}, volume={45}, ISSN={["1468-0440"]}, DOI={10.1057/s41288-019-00143-9}, abstractNote={We investigate contract elements and growing conditions associated with anomalous claims behaviour in the U.S. Federal Crop Insurance Program. In this study the measure of “anomalous claims behaviour” is based on the number of producers (in a county) placed on the “Spot Check List” (SCL)—a list generated from government compliance efforts that aim to detect and deter fraud, waste, and abuse in the U.S. Federal Crop Insurance Program. Using county-level data and various econometric approaches that control for features of this data set (e.g., the count nature of the dependent variable, censoring, potential endogeneity, and spatial/temporal dependence), we find that the following crop insurance contract attributes influence the extent of anomalous claims behaviour in a county: (a) the ability to insure individual fields through “optional units”; (b) the coverage level choice; and (c) the total number of acres insured. In addition, our empirical analyses suggest that anomalous claims behaviour significantly increases when extreme weather events occur (e.g., droughts, floods) and when economic conditions are unfavourable (i.e., high input costs that lower profit levels). Results from this study have important implications for addressing potential underwriting vulnerabilities in crop insurance contracts and the frequency of more rigorous compliance inspections.}, number={1}, journal={GENEVA PAPERS ON RISK AND INSURANCE-ISSUES AND PRACTICE}, author={Park, Sungkwol and Goodwin, Barry K. and Zheng, Xiaoyong and Rejesus, Roderick M.}, year={2020}, month={Jan}, pages={157–183} } @article{he_zheng_rejesus_yorobe_2020, title={Input use under cost-of-production crop insurance: Theory and evidence}, volume={51}, ISSN={["1574-0862"]}, DOI={10.1111/agec.12558}, abstractNote={Abstract}, number={3}, journal={AGRICULTURAL ECONOMICS}, author={He, Juan and Zheng, Xiaoyong and Rejesus, Roderick and Yorobe, Jose, Jr.}, year={2020}, month={May}, pages={343–357} } @article{zheng_vukina_zheng_2019, title={Estimating asymmetric information effects in health care with uninsurable costs}, volume={19}, ISSN={["2199-9031"]}, DOI={10.1007/s10754-018-9246-z}, abstractNote={We use a structural approach to separately estimate moral hazard and adverse selection effects in health care utilization using hospital invoices data. Our model explicitly accounts for the heterogeneity in the non-insurable transactions costs associated with hospital visits which increase the individuals' total cost of health care and dampen the moral hazard effect. A measure of moral hazard is derived as the difference between the observed and the counterfactual health care consumption. In the population of patients with non life-threatening diagnoses, our results indicate statistically significant and economically meaningful moral hazard. We also test for the presence of adverse selection by investigating whether patients with different health status sort themselves into different health insurance plans. Adverse selection is confirmed in the data because patients with estimated worse health tend to buy the insurance coverage and patients with estimated better health choose not to buy the insurance coverage.}, number={1}, journal={INTERNATIONAL JOURNAL OF HEALTH ECONOMICS AND MANAGEMENT}, author={Zheng, Yan and Vukina, Tomislav and Zheng, Xiaoyong}, year={2019}, month={Mar}, pages={79–98} } @article{he_zheng_rejesus_yorobe_2019, title={Moral hazard and adverse selection effects of cost-of-production crop insurance: evidence from the Philippines}, volume={63}, ISSN={["1467-8489"]}, DOI={10.1111/1467-8489.12290}, abstractNote={This article examines the moral hazard and adverse selection effects of cost‐of‐production (COP) crop insurance products. Building on existing crop insurance models of moral hazard, as well as a survey‐based data set that allows us to separately identify moral hazard from adverse selection, we find evidence that farmers insured under COP contracts spend more on chemical fertilizers and pesticides (i.e. those inputs whose costs determine the indemnity payments). However, since these same COP insured farmers are still likely to use less inputs (like effort) whose costs do not enter the indemnity payment formula, and yield depends on both types of inputs (i.e. the determinants and non‐determinants of the indemnity payments), the final moral hazard effect of COP insurance on yields is ambiguous. Our analysis also suggests that farmers who tend to spend less on chemical fertilizers and pesticides are the ones with private information on soil conditions and pest incidence. These are the types of farmers who adversely select into COP contracts that only cover weather related losses.}, number={1}, journal={AUSTRALIAN JOURNAL OF AGRICULTURAL AND RESOURCE ECONOMICS}, author={He, Juan and Zheng, Xiaoyong and Rejesus, Roderick M. and Yorobe, Jose M., Jr.}, year={2019}, month={Jan}, pages={166–197} } @article{qi_zheng_cao_zhu_2019, title={The effect of e-commerce agribusiness clusters on farmers' migration decisions in China}, volume={35}, ISSN={["1520-6297"]}, DOI={10.1002/agr.21586}, abstractNote={Abstract}, number={1}, journal={AGRIBUSINESS}, author={Qi, Jiaqi and Zheng, Xiaoyong and Cao, Peng and Zhu, Liqun}, year={2019}, month={Jan}, pages={20–35} } @article{qi_zheng_guo_2019, title={The formation of Taobao villages in China}, volume={53}, ISSN={["1873-7781"]}, DOI={10.1016/j.chieco.2018.08.010}, abstractNote={We conduct the first econometric analysis of the determinants of the formation of Taobao villages, the rural e-commerce clusters recently appeared in China. We examine the roles of various factors such as location, education, transportation infrastructure, the structure of local economy, urban-rural income difference, local government policies and spillover from nearby Taobao villages in the formation of Taobao villages. We find that education plays an important and positive role in the formation of Taobao villages, while credit support for other businesses makes the formation of new Taobao villages less likely.}, journal={CHINA ECONOMIC REVIEW}, author={Qi, Jiaqi and Zheng, Xiaoyong and Guo, Hongdong}, year={2019}, month={Feb}, pages={106–127} } @article{he_rejesus_zheng_yorobe_2018, title={Advantageous Selection in Crop Insurance: Theory and Evidence}, volume={69}, ISSN={["1477-9552"]}, DOI={10.1111/1477-9552.12267}, abstractNote={Abstract}, number={3}, journal={JOURNAL OF AGRICULTURAL ECONOMICS}, author={He, Juan and Rejesus, Roderick and Zheng, Xiaoyong and Yorobe, Jose, Jr.}, year={2018}, month={Sep}, pages={646–668} } @article{he_zheng_2018, title={Price discrimination across different ticket distribution channels: Evidence from the US-china flight market}, ISSN={1043-951X}, url={http://dx.doi.org/10.1016/J.CHIECO.2018.10.003}, DOI={10.1016/J.CHIECO.2018.10.003}, abstractNote={In the US-China international flight market, airlines sell tickets in two different distribution channels at vastly different prices. This provides a rare opportunity to examine how airlines practice price discrimination across different ticket distribution channels. Using a unique dataset collected from this market, we find that price discrimination across different ticket distribution channels is not influenced by market competition but increases with demand.}, journal={China Economic Review}, publisher={Elsevier BV}, author={He, Qingxin and Zheng, Xiaoyong}, year={2018}, month={Oct} } @article{weng_vukina_zheng_2015, title={Productivity or Demand: Determinants of Plant Survival and Ownership Change in the US Poultry Industry}, volume={37}, ISSN={["2040-5804"]}, DOI={10.1093/aepp/ppu024}, abstractNote={We study the productivity‐survival link in the U.S. poultry processing industry using longitudinal data constructed from 5 censuses of manufactures between 1987 and 2007. First, we study the effects of physical productivity and demand‐specific factors on plant survival and ownership change. Second, we analyze the determinants of the firm‐level expansion. The results show that higher demand‐specific factors decrease the probability of exit and increase the probability of ownership change. The effect of physical productivity on the probability of exit or ownership change is generally insignificant. Also, firms with higher demand‐specific factors have higher probability to expand, whereas average firm‐level physical productivity turns out to be an insignificant determinant of firm expansion. Since demand specific factors all favor large companies, this could expedite industry concentration process already well under way and could raise new concerns over contract growers' income and consumers' welfare.}, number={1}, journal={APPLIED ECONOMIC PERSPECTIVES AND POLICY}, author={Weng, Tengying and Vukina, Tomislav and Zheng, Xiaoyong}, year={2015}, month={Mar}, pages={151–175} } @article{hu_phaneuf_zheng_2014, title={Quantifying the benefits associated with the use of alternative marketing arrangements by US farmers}, volume={6}, ISSN={["1756-1388"]}, DOI={10.1108/caer-10-2011-0147}, abstractNote={ Purpose – The purpose of this paper is to quantify the benefits to farmers from using alternative marketing arrangements (AMAs) in the USA. The authors first estimate a behavioral model explaining farmers' joint decisions on which commodities to produce and which marketing channels to use when selling their outputs. The authors then use the estimated model to quantify the benefits to farmers from using AMAs. }, number={1}, journal={CHINA AGRICULTURAL ECONOMIC REVIEW}, author={Hu, Wu-Yueh and Phaneuf, Daniel and Zheng, Xiaoyong}, year={2014}, pages={108–124} } @article{hammond_zheng_2013, title={Heterogeneity in tournaments with incomplete information: An experimental analysis}, volume={31}, DOI={10.1016/j.ijindorg.2012.11.005}, abstractNote={We focus on the relationship between a player's effort provision and tournament heterogeneity in a setting where players only know the distribution of their opponents' abilities. By isolating whether increases in heterogeneity influence optimal effort provision in cardinal, ordinal, and piece rate tournaments, we show that a model in which ability and effort are complements can be empirically distinguished from a model in which ability and effort are neither complements nor substitutes. To discriminate between the two models, we conduct a laboratory experiment where subjects participate in a real effort task and are paid based on performance relative to a group of opponents that may be relatively homogeneous or relatively heterogeneous. In these laboratory data, the level of effort provision is independent of tournament heterogeneity, lending support to the model in which ability and effort are neither complements nor substitutes.}, number={3}, journal={International Journal of Industrial Organization}, author={Hammond, R. G. and Zheng, X. Y.}, year={2013}, pages={248–260} } @article{choi_wohlgenant_zheng_2013, title={Household-Level Welfare Effects of Organic Milk Introduction}, volume={95}, ISSN={["1467-8276"]}, DOI={10.1093/ajae/aat021}, abstractNote={Using household scanner data and a discrete choice modeling approach, we estimate demand for milk products at the micro‐level and compute the distribution of welfare effects from introducing organic milk across households with different characteristics within the partial equilibrium framework. The price effects of introducing organic milk are larger for low‐income households than for high‐income households, and the differences in the variety effects of introducing organic milk to groups with various levels of education are larger than the differences in the variety effects among groups with different income levels. Policy implications of these findings are discussed.}, number={4}, journal={AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS}, author={Choi, Hee-Jung and Wohlgenant, Michael K. and Zheng, Xiaoyong}, year={2013}, month={Jul}, pages={1009–1028} } @article{li_zheng_2012, title={Information acquisition and/or bid preparation: A structural analysis of entry and bidding in timber sale auctions}, volume={168}, ISSN={["1872-6895"]}, DOI={10.1016/j.jeconom.2011.09.004}, abstractNote={Recently, several auction models with entry have been proposed: in one model (Levin and Smith, 1994, Li and Zheng, 2009), bidders are assumed to draw their private values after they decide to enter. In another model (Samuelson, 1985, Li and Zheng, 2009), bidders are assumed to learn their values before their entry decisions are made. The entry cost in the latter model can be interpreted as bid preparation cost, while the entry cost in the former model consists of both costs from information acquisition and bid preparation. Moreover, these two models have different implications for important policies, e.g., the optimal reserve price. In this paper we provide a unified structural framework where the two models can be estimated and distinguished using the Bayesian method. We apply our method to analyze Michigan timber sale auctions.}, number={1}, journal={JOURNAL OF ECONOMETRICS}, author={Li, Tong and Zheng, Xiaoyong}, year={2012}, month={May}, pages={29–46} } @article{chen_zheng_2012, title={Price Volatility and Contract Maturity: Evidence from an Online Futures Market for Sports Tickets}, volume={40}, ISSN={0094-5056 1939-4632}, url={http://dx.doi.org/10.1057/eej.2012.35}, DOI={10.1057/eej.2012.35}, number={1}, journal={Eastern Economic Journal}, publisher={Springer Science and Business Media LLC}, author={Chen, Jihui and Zheng, Xiaoyong}, year={2012}, month={Dec}, pages={56–70} } @article{vukina_zheng_2011, title={Homogenous and Heterogenous Contestants in Piece Rate Tournaments: Theory and Empirical Analysis}, volume={29}, ISSN={["1537-2707"]}, DOI={10.1198/jbes.2010.08345}, abstractNote={In this article we show that sorting different ability contestants in piece rate tournaments into more homogenous groups alters agents’ incentives to exert effort. We propose a method for structurally estimating the piece rate tournament game with heterogenous players and apply it to the payroll data from a broiler production contract. Our counterfactual analysis shows that under reasonable assumptions, both the principal and the growers can gain when the tournament groups are heterogenized. This business strategy could be difficult to implement in real-life settings, however. This article has supplementary material online.}, number={4}, journal={JOURNAL OF BUSINESS & ECONOMIC STATISTICS}, author={Vukina, Tomislav and Zheng, Xiaoyong}, year={2011}, month={Oct}, pages={506–517} } @article{zheng_zimmer_2011, title={Modelling bivariate count distributions with finite mixture models: application to health care demand of married couples}, volume={43}, ISSN={["0003-6846"]}, DOI={10.1080/00036840802600509}, abstractNote={Count measures of health care utilization are often correlated with other measures of utilization. In addition, utilization measures display a high proportion of zero observations. This article attempts to accommodate both data features in one model, with an application to medical care usage of husbands and wives. A bivariate count representation is used to model dependence between husbands’ and wives’ utilizations, and a finite mixture specification accommodates the problem of excess zeros. Results show that married couples are characterized by two distinct subpopulations according to the intensity of utilization of the wife.}, number={12}, journal={APPLIED ECONOMICS}, author={Zheng, Xiaoyong and Zimmer, David M.}, year={2011}, pages={1477–1483} } @article{kandilov_zheng_2011, title={The impact of entry costs on export market participation in agriculture}, volume={42}, ISSN={["1574-0862"]}, DOI={10.1111/j.1574-0862.2010.00530.x}, abstractNote={Theoretical models of market entry imply that sunk costs are an important factor in the decision to export. Following Helpman, Melitz, and Rubinstein (2008), we develop a simple model of foreign market participation and use a Bayesian method to estimate the resulting dynamic discrete-choice model with lagged dependent variable. Employing a balanced panel data that follows 81 trading partners for 30 years from 1971 to 2000, we estimate our model and compute the marginal effect of sunk costs on the likelihood of export market participation. We find that such costs are economically and statistically important for trade in all of the six major agricultural commodities (Cereals, Dairy, Fish, Meat, Vegetables and Fruits, and Sugar), for agricultural producers in both developed and developing countries. We also find evidence suggesting that, in general, market access for both developed and developing exporters had improved in the years following the Uruguay round of trade negotiations (1995–2000).}, number={5}, journal={AGRICULTURAL ECONOMICS}, author={Kandilov, Ivan T. and Zheng, Xiaoyong}, year={2011}, month={Sep}, pages={531–546} } @article{vukina_zheng_2010, title={Bargaining, Search, and Price Dispersion: Evidence from the Live Hogs Market}, volume={39}, ISSN={1068-2805 2372-2614}, url={http://dx.doi.org/10.1017/S1068280500007498}, DOI={10.1017/S1068280500007498}, abstractNote={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.}, number={3}, journal={Agricultural and Resource Economics Review}, publisher={Cambridge University Press (CUP)}, author={Vukina, Tomislav and Zheng, Xiaoyong}, year={2010}, month={Oct}, pages={534–546} } @article{zheng_vukina_2009, title={Do Alternative Marketing Arrangements Increase Pork Packers' Market Power ?}, volume={91}, ISSN={["1467-8276"]}, DOI={10.1111/j.1467-8276.2008.01185.x}, abstractNote={Abstract}, number={1}, journal={AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS}, author={Zheng, Xiaoyong and Vukina, Tomislav}, year={2009}, month={Feb}, pages={250–263} } @article{li_zheng_2009, title={Entry and Competition Effects in First-Price Auctions: Theory and Evidence from Procurement Auctions}, volume={76}, ISSN={["1467-937X"]}, DOI={10.1111/j.1467-937X.2009.00558.x}, abstractNote={Motivated by several interesting features of the highway mowing auction data from the Texas Department of Transportation (TDoT), we study three competing procurement auction models with endogenous entry. Our and bidding models provide several interesting implications. For the first time, we show that even within an independent private value paradigm, as the number of potential bidders increases, bidders' equilibrium bidding behaviour can become less aggressive, and the expected procurement cost may rise because the entry effect is always positive and may dominate the negative competition effect. We then develop structural models of and bidding corresponding to the three models under consideration, controlling for unobserved auction heterogeneity, and use the recently developed semi-parametric Bayesian estimation method to analyse the data. We select the model that best fits the data, and use the corresponding structural estimates to quantify the entry effect and the competition effect with regard to the individual bids and the procurement cost. Copyright 2009, Wiley-Blackwell.}, number={4}, journal={REVIEW OF ECONOMIC STUDIES}, author={Li, Tong and Zheng, Xiaoyong}, year={2009}, month={Oct}, pages={1397–1429} } @article{zheng_2009, title={Quantifying the cost of excess market thickness in timber sale auctions}, volume={27}, ISSN={["1873-7986"]}, DOI={10.1016/j.ijindorg.2009.01.005}, abstractNote={Abstract In auctions with endogenous entry, theory predicts that too many potential bidders, or the excess market thickness, may actually decrease the seller's expected revenue and the social welfare generated by the auction. This paper proposes a computationally easy method for estimating the optimal number of potential bidders in timber sale auctions with endogenous entry and an uncertain number of active bidders and then quantifies the cost of excess market thickness. It is found that the welfare loss due to the excess market thickness is moderate in this market.}, number={5}, journal={INTERNATIONAL JOURNAL OF INDUSTRIAL ORGANIZATION}, author={Zheng, Xiaoyong}, year={2009}, month={Sep}, pages={553–566} } @article{zheng_zimmer_2009, title={RACIAL DIFFERENCES IN HEALTH-CARE UTILIZATION: ANALYSIS BY INTENSITY OF DEMAND}, volume={27}, ISSN={["1465-7287"]}, DOI={10.1111/j.1465-7287.2009.00151.x}, abstractNote={ Health‐care utilization is estimated for different subpopulations with respect to various measures of health status, which allows the classification of health‐care consumers into groups with different intensities of demand. This specification allows us to determine whether racial differences vary between subgroups of consumers. In addition to blacks, we also consider utilization by Hispanics. The model is estimated separately for five measures of utilization: office‐based physician visits, office‐based nonphysician visits, outpatient department visits, emergency room visits, and hospital discharges using data from the Medical Expenditure Panel Survey. Results across numerous specifications indicate that racial differences remain a serious public policy concern, both among healthy and unhealthy minorities. (JEL I11, I12)}, number={4}, journal={CONTEMPORARY ECONOMIC POLICY}, author={Zheng, Xiaoyong and Zimmer, David M.}, year={2009}, month={Oct}, pages={475–490} } @article{vukina_zheng_marra_levy_2008, title={Do farmers value the environment? Evidence from a conservation reserve program auction}, volume={26}, ISSN={["0167-7187"]}, DOI={10.1016/j.ijindorg.2008.01.001}, abstractNote={The paper uses data from one Conservation Reserve Program (CRP) auction to elicit farmers' attitudes toward the environment by analyzing their bids. The CRP pays farmers to remove chosen plots of land from agricultural production and put them to a conservation use. An interesting aspect of this auction is that winners are determined by a combination of low bids and environmental scores of individual plots. Using decision theoretic approach to model this auction we show that farmers condition their bids on the strength of their environmental scores and that they value environmental benefits, especially those that increase future soil productivity of their land.}, number={6}, journal={INTERNATIONAL JOURNAL OF INDUSTRIAL ORGANIZATION}, author={Vukina, Tomislav and Zheng, Xiaoyong and Marra, Michele and Levy, Amando}, year={2008}, month={Nov}, pages={1323–1332} } @article{zheng_zimmer_2008, title={Farmers' health insurance and access to health care}, volume={90}, ISSN={["1467-8276"]}, DOI={10.1111/j.1467-8276.2007.01041.x}, abstractNote={Abstract}, number={1}, journal={AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS}, author={Zheng, Xiaoyong and Zimmer, David M.}, year={2008}, month={Feb}, pages={267–279} } @article{zheng_zhen_2008, title={Healthy food, unhealthy food and obesity}, volume={100}, ISSN={["0165-1765"]}, DOI={10.1016/j.econlet.2008.02.014}, abstractNote={Abstract We examine whether the latent behavioral mechanisms embedded in two “price effects” explanations of the obesity problem are operative. Our findings lend support to the hypothesis that falling food price is one likely cause of the obesity epidemic.}, number={2}, journal={ECONOMICS LETTERS}, author={Zheng, Xiaoyong and Zhen, Chen}, year={2008}, month={Aug}, pages={300–303} } @article{li_zheng_2008, title={SEMIPARAMETRIC BAYESIAN INFERENCE FOR DYNAMIC TOBIT PANEL DATA MODELS WITH UNOBSERVED HETEROGENEITY}, volume={23}, ISSN={["0883-7252"]}, DOI={10.1002/jae.1017}, abstractNote={Abstract}, number={6}, journal={JOURNAL OF APPLIED ECONOMETRICS}, author={Li, Tong and Zheng, Xiaoyong}, year={2008}, pages={699–728} } @article{zheng_2008, title={Semiparametric Bayesian estimation of mixed count regression models}, volume={100}, ISSN={["0165-1765"]}, DOI={10.1016/j.econlet.2008.03.023}, abstractNote={This paper develops semiparametric Bayesian estimation approach for Poisson regression models with unobserved heterogeneity of unknown density. This approach is computationally efficient and allows automatic adaptation of the approximating density to data during estimation. Simulations show the estimator performs well.}, number={3}, journal={ECONOMICS LETTERS}, author={Zheng, Xiaoyong}, year={2008}, month={Sep}, pages={435–438} } @article{zheng_vukina_2007, title={Efficiency gains from organizational innovation: Comparing ordinal and cardinal tournament games in broiler contracts}, volume={25}, ISSN={["0167-7187"]}, DOI={10.1016/j.ijindorg.2006.09.001}, abstractNote={We analyze the contract settlement data of a poultry company who contracts the production of broiler chickens with a group of independent growers. The company originally used rank-order (ordinal) tournaments to compensate their contract growers and later switched to cardinal tournaments. Based on the observed payment mechanism we construct an empirical model of a rank-order tournament game and estimate structural parameters of the symmetric Nash equilibrium and then simulate growers' performance under the observed cardinal tournament contract. We found that the model with risk-averse agents fits the data better than the model with risk-neutral agents and that switching from a rank-order tournament to a cardinal tournament, while keeping the growers' ex-ante expected utility constant, improved efficiency. The principal (company) gains from the switch, whereas some of the agents (growers) gain and others lose depending on their realized productivity shocks.}, number={4}, journal={INTERNATIONAL JOURNAL OF INDUSTRIAL ORGANIZATION}, author={Zheng, Xiaoyong and Vukina, Tomislav}, year={2007}, month={Aug}, pages={843–859} } @article{zheng_2007, title={Identification and inference for econometric models. Essays in honor of Thomas Rothenberg.}, volume={89}, ISSN={["0002-9092"]}, DOI={10.1111/j.1467-8276.2007.01019_5.x}, abstractNote={American Journal of Agricultural EconomicsVolume 89, Issue 2 p. 555-556 Books Reviewed Identification and Inference for Econometric Models: Essays in Honor of Thomas Rothenberg Xiaoyong Zheng, Xiaoyong Zheng North Carolina State UniversitySearch for more papers by this author Xiaoyong Zheng, Xiaoyong Zheng North Carolina State UniversitySearch for more papers by this author First published: 01 May 2007 https://doi.org/10.1111/j.1467-8276.2007.01019_5.xRead the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume89, Issue2May 2007Pages 555-556 RelatedInformation}, number={2}, journal={AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS}, author={Zheng, Xiaoyong}, year={2007}, month={May}, pages={555–556} } @article{vukina_zheng_2007, title={Structural estimation of rank-order tournament games with private information}, volume={89}, ISSN={["1467-8276"]}, DOI={10.1111/j.1467-8276.2007.01008.x}, abstractNote={In this article we propose and solve a game‐theoretic model of a rank‐order tournament with private information. Using the contract settlement data from a poultry company, we estimate a fully structural model of a symmetric Nash equilibrium of this game. We show that growers' equilibrium effort depends on four factors: the spread in piece rates between the performance brackets, the number of players in each tournament, the number of performance brackets used, and the density of growers' private shocks. We use estimates to simulate how changes in the tournament characteristics affecting equilibrium effort impact the growers' and the integrator's welfare.}, number={3}, journal={AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS}, author={Vukina, Tomislav and Zheng, Xiaoyong}, year={2007}, month={Aug}, pages={651–664} }