*Hung-Hao Chang is a professor in the Department of Agricultural Economics, National Taiwan University. This study is partially funded by the Ministry of Science and Technology in Taiwan under grant number 103-2410-H-002-007. The author would like to express sincere appreciation to journal editor Terrance Hurley and three anonymous referees for their comments and suggestions. Excellent research assistance on data preparation that was provided by the Council of Agriculture in Taiwan is also acknowledged. The author claims that the findings of the paper simply reflect the review of the author, and not that of the Council of Agriculture in Taiwan. The author is responsible for any errors.
Correspondence to be sent to: [email protected].
Received March 22, 2016