共 7 条
[2]
Intellectual property rights, licensing, and innovation in an endogenous product-cycle model[J] . Guifang Yang,Keith E. Maskus.Journal of International Economics . 2001 (1)
[5]
A SCHUMPETERIAN MODEL OF THE PRODUCT LIFE-CYCLE
[J].
AMERICAN ECONOMIC REVIEW,
1990, 80 (05)
:1077-1091
[7]
On the mechanics of ecnomic development .2 Lucass R.E. Journal of Monetary Economics . 1998