Silk, Alvin J.
Scale and scope effects on advertising agency costs .-- Cambridge (Mss.) : NBER , 1990
.--57 p. gráf. 23 cm. .-- ( NBER working papers;3463 ).
ECONOMIAS DE ESCALA
Scale and scope effects on advertising agency costs .-- Cambridge (Mss.) : NBER , 1990
.--57 p. gráf. 23 cm. .-- ( NBER working papers;3463 ).
ECONOMIAS DE ESCALA