We study the impact of space on perfect collusion sustainability within the unidirectional Hotelling model where the firms are constrained to move to the left. We obtain that when the firm that located to the left of the Hotelling segment has the greater incentive to deviate, the distance...

The unidirectional Hotelling model where consumers can buy only from firms located on their right (left) is extended to allow for elastic demand functions. A Bertrand-type model and a Cournot-type model are considered. If firms choose location and then set prices, agglomeration never arises;...