Navaretti, Giorgio Barba <br/><br/>
Weightless machines and costless knowledge: an empirical analysis of trade and technology diffusion 
by Giorgio Barba Navaretti and Isidro Soloaga 
 - Washington, D.C.  World Bank  2001 
 - 29p. 
 - Policy research working paper 2598 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology diffusion<br/>Costless knowledge<br/>Weightless machines