Umezawa Masashi

Masashi Umezawa

Information about the author Masashi Umezawa will soon be added to the site.
Found 5 papers in total
A cost allocation problem arising in hub–spoke network systems
A cost allocation problem arising in hub–spoke network systems
2005
This paper studies a cost allocation problem arising from hub–spoke network...
Evaluating all Bertrand-Nash equilibria in a discrete spatial duopoly model
Evaluating all Bertrand-Nash equilibria in a discrete spatial duopoly model
2004
This paper studies a spatial duopoly model where customers are located at nodes and...
Sufficient conditions for nonempty core of minimum cost forest games
Sufficient conditions for nonempty core of minimum cost forest games
2003
This paper studies problems of establishing a minimum cost network and of determining...
Merger effect of two firms under network equilibrium
Merger effect of two firms under network equilibrium
2002
This paper studies the merger effect of two firms under the price competition of n...
Multi-facility location problem with nonincreasing piecewise linear demand on a tree
Multi-facility location problem with nonincreasing piecewise linear demand on a tree
2000
This paper deals with a multi-facility location problem on a tree. Given the number of...
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