title: Determinants of generic entry in the regulated Taiwanese prescription drug market.
abstract: OBJECTIVE
  This paper investigates the determinants of generic entry in the regulated Taiwanese prescription drug market, where physicians both prescribe and dispense drugs.
  
  
  METHODS
  Using a sample of 29 ingredients and a population claim data set from 1997-2007, we employ the negative binomial regression to empirically examine the determinants of generic entry in Taiwan.
  
  
  RESULTS
  This study finds that the lagged number of competitors, market size, and market share of large-scale medical providers affect generic entry.
  
  
  CONCLUSIONS
  The negative effect of large buyers on generic entry implies that rent-seeking behavior appears to create a barrier for generic manufacturers to enter into the Taiwanese prescription drug market.
authors.affiliation: Department of Economics, National Cheng Kung University, No. 1 University Road, Tainan 701, Taiwan. ymliu@mail.ncku.edu.tw
authors.forename: Ya-Ming
authors.initials: YM
authors.lastname: Liu
authors.forename: Jur-Shan
authors.initials: JS
authors.lastname: Cheng
mesh_terms: D016527:Drug Costs; D004345:Drug Industry; D004335:Drug and Narcotic Control / Q000331:legislation & jurisprudence*; D016568:Drugs, Generic / Q000191:economics / Q000627:therapeutic use*; D006801:Humans; D040541:Marketing; D010818:Practice Patterns, Physicians' / Q000706:statistics & numerical data; D055553:Prescription Drugs / Q000191:economics / Q000627:therapeutic use*; D013624:Taiwan
chemical_list: D016568:Drugs, Generic; D055553:Prescription Drugs