Helpman, Elhanan
Quality ladders and product cycles .-- Cambridge [Mss.] : NBER , 1989
.--29 p. gráf. 23 cm. .-- ( NBER. Working Paper;3201 ).
Resumen. -- Bibliografía
MODELOS MATEMATICOS
Quality ladders and product cycles .-- Cambridge [Mss.] : NBER , 1989
.--29 p. gráf. 23 cm. .-- ( NBER. Working Paper;3201 ).
Resumen. -- Bibliografía
MODELOS MATEMATICOS