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| Liu, Jing; Arndt, Channing; Hertel, Thomas W.. |
| Computable General Equilibrium (CGE) models have been widely used for quantitative analysis of global economic issues. However, CGE models are frequently criticized for resting on weak empirical foundations. This paper builds on recent work in macro-econometric estimation, developing an approach to parameter estimation for a widely employed global CGE model, the Global Trade Analysis Project (GTAP) model. An approximate likelihood function is developed and the set of optimum elasticity values is obtained by maximizing this approximate likelihood function in the context of a back casting exercise. In addition, two statistical tests are performed. The first of these tests compares the standard GTAP elasticity vector with the estimated trade elasticity... |
| Tipo: Working or Discussion Paper |
Palavras-chave: International Relations/Trade; Research Methods/ Statistical Methods. |
| Ano: 2003 |
URL: http://purl.umn.edu/28687 |
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| Liu, Jing; Waldorf, Brigitte S.. |
| The paper focuses on body weight gain among immigrants in the US. The emphasis is on disentangling different time lines that are relevant in the context of immigration and acculturation, namely length of exposure to the high obesity culture, age at immigration, year of immigration and aging. Using data from the National Latino and Asian American Study (NLAAS), we find that (1) acculturation is associated with higher BMIs for the 1st generation, but not the 1.5 generation; (2) immigration at an early age (before 12) facilitates acculturation progress and drives BMI convergence to natives; (3) the effect of sojourn length in the host country is unstable across model specifications; (4) BMI differences between Asian and Latino immigrants are partly due to... |
| Tipo: Working Paper |
Palavras-chave: Immigration; Obesity; Acculturation; Health Economics and Policy; I10; J15. |
| Ano: 2012 |
URL: http://purl.umn.edu/120896 |
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| Zhu, Li-zhi; Liu, Jing; Xu, Ran; Xiang, Meng. |
| China’s energy consumption for agricultural production has relied on petroleum and coal with relatively low input from power and other types of energy for a long time. Projections indicate that as China’s existing development trend leads to substantial growth of energy demand for agricultural production, such a long term irrational energy consumption pattern would unlikely be able to meet the needs of the country’s developing agricultural sector. As such, it is recommended that China’s agricultural sector should follow the national energy development strategy guideline by gradually increasing the use of wind power, solar energy, biomass and other new energy sources while advancing technological innovations on traditional energy sources. Meanwhile, as the... |
| Tipo: Journal Article |
Palavras-chave: Rural energy; Energy structure; Consumption elasticity; Consumption projection; China; Agribusiness. |
| Ano: 2011 |
URL: http://purl.umn.edu/113410 |
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| Liu, Jing; van Leeuwen, Nico; Vo, Tri Thanh; Tyers, Rodney; Hertel, Thomas W.. |
| This paper outlines an approach to disaggregating labor payments in the GTAP, global economic data base. The split between low- and high-skilled labor is based on occupational data. High-skilled labor is assumed to consist of managers, administrators, professionals, and para-professionals. Data are gathered on this occupational split, by sector, in fifteen different economies, and these are mapped to GTAP sectors. Regression analysis shows a systematic relationship between GDP per capita and the national stock of tertiary and secondary educated labor on the one hand, and the sectoral labor payments split on the other. This model is used to predict labor splits, by sector, in the remaining GTAP regions. The results are evaluated in terms of the... |
| Tipo: Working or Discussion Paper |
Palavras-chave: International Relations/Trade; Labor and Human Capital. |
| Ano: 1998 |
URL: http://purl.umn.edu/28722 |
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| Taheripour, Farzad; Hertel, Thomas W.; Liu, Jing. |
| In recent years there has been a flurry of activity aimed at evaluating the land use consequences of biofuels programs and the associated carbon releases. In this paper we argue that these studies have tended to underestimate the ensuing land use change, because they have ignored the role of irrigation, and associated constraints on cropland expansion. In this paper, we develop a new general equilibrium model which distinguishes irrigated and rainfed cropping industries at a global scale. Using the new model we evaluate the implications of land use change due to US ethanol programs, in the context of short run constraints on the expansion of irrigated cropland. Since irrigated area tends to offer a higher yield than its rainfed counterpart, this provides... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Land Economics/Use; Resource /Energy Economics and Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/103843 |
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