>It is incredible that Bertrand with this review made his way in the  
>history of economic thought. The model that we call nowadays the Bertrand  
>model was formalised by Edgeworth. Only two, rather vague sentences in his 
>review can legitimate a claim to his fame. 
 
To this regard, we would like to add the following: we found out that,  
before Edgeworth, the model was indeed formalized by Launhardt. You might  
want to have a look at our working paper, which is downloadable at  
 
http://www.dse.unibo.it/wp/413.pdf 
 
Comments most welcome. 
Yours, 
Luca Lambertini and Manuela Mosca