3Acemoglu,D and Guerrier,V.Capital Deepening and Non-balanced Economic Growth[EB/OL],2006.(2006-08-15)[2011-07-16].http://papers.ssrn.com/sol3/papers.cfm?abstract_id=926054.
4Zuleta,H and Young,T.Labor's Shares-Aggregate and Industry:Accounting for both in a Model of Unbalanced Growth with Induced Innovation[EB/OL],2007.(2007-01-17)[2011-06-18].http://papers.ssrn.com/sol3/papers.cfm?abstract_id=880062.
5Beck,N and Katz,Jonathan.What To Do(and Not To Do)with Time-Series Cross-Section Data[J].American Political Science Review,1995,89(3).
