Martin, Christopher. <br/><br/>
Effective demands and spillovers / 
Christopher Martin, Richard Portes. 
 - London :  Birkbeck College, University of London,  1987. 
 - 13 páginas ;  21 cm. 
 - Discussion paper in economics ;  87/16 .
 - Discussion paper in economics (Birkbeck College, University of London) .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Modelos matemáticos.<br/>Demanda de consumo.
<br/><br/><label>LC Class. No.: </label>HB 1  / .A2D5 no. 87/16