We develop a model of strategic networks that captures two distinctive features of interfirm collaboration: bilateral agreements and nonexclusive relationships. Our analysis highlights the relationship between market competition, firms' incentives to invest in R&D, and the architecture of...

We give sufficient conditions for existence of a perfect matching in a graph in terms of the eigenvalues of the Laplacian matrix. We also show that a distance-regular graph of degree k is k-edge-connected

This paper deals with a Markovian decision process with an absorbing set J 0 . We are interested in the largest number β *≥1, called the critical discount factor, such that for all discount factors β smaller than β * the limit V of the N-stage value function V N for N →∞ exists and is...

This paper deals with a Markovian decision process with an absorbing set J <Subscript>0</Subscript>. We are interested in the largest number β<Superscript>*</Superscript>≥1, called the critical discount factor, such that for all discount factors β smaller than β<Superscript>*</Superscript> the limit V of the N-stage value function V <Subscript>N</Subscript> for N →∞ exists and is...</subscript></superscript></superscript></subscript>