Ⅵ.working paper


1. "A Cost-Benefit Analysis of Environmental Investment Based on an International Dynamic General Equilibrium Model", 1996. March. mimeo


2. "Optimal Environmental Tax in an Economy with Labor and Capital taxation", 2002.7


3. "Is There a Secondary Effect of Pollution?", 2004.8


4. "Sample Selection Bias and the Effect of Family Background on the Returns to Schooling: Evidence from Korea", 2007


5. "The optimal level of schooling in an economy with direct cost, budget constraint, the endogenietyof labor supply and parental altrusim", 2007


6. Which kind of mismatch results in more inefficient educational investment? Mismatch in degree field vs. over-education, 2009

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