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We discuss the incentive of an exclusive holder of a technology to share it with competitors in a market with network externalities. We assume that high expected sales increase the willingness to pay for the good. This is named the 'network effect'. At a stable fulfilled expectations equilibrium, where the actual sales are equal to the expected ones, it is(More)
The Telecommunications Act of 1996 requires that telephone service be available in high-cost areas at rates that are aaordable" and reasonably com-parable" to those charged in low-cost areas. It also requires that carriers serving high-cost areas at below-cost rates be compensated with explicit and suucient subsidies. This paper analyzes an auction(More)
The involvement of chemokines in inflammation is well established, but their functional role in disease progression, and particularly in the development of fibrosis, is not yet understood. To investigate the functional role that the chemokines monocyte chemoattractant protein-1 (MCP-1) and RANTES play in inflammation and the progression to fibrosis during(More)
How s h o uld a monopolist price a durable good or a new technology that is subject to network externalities? In particular, should the monopolist set a low \ i ntroductory price" to attract a \critical m a ss" of adopters? In this paper, we p r o vide intuition as to when and why introductory pricing might occur in the presence of network externali-ties.(More)
Nephrin is an Ig-like transmembrane protein. It is a major component of the podocyte slit diaphragm and is essential for maintaining normal glomerular permeability. CD2-associated protein (CD2AP) is also necessary for normal glomerular permeability and is a putative nephrin adapter molecule. Here, we document that nephrin and CD2AP are linked to the actin(More)
Combinatorial auctions are desirable as they enable bidders to express the synergistic values of a group of assets and thus may lead to better allocations. Compared to other auctions, they keep bidders from being exposed to risks (of receiving only parts of combinations that would be valuable to them) or from being overly cautious (in order to minimize such(More)
I first met William Vickrey in Narita Airport outside Tokyo in 1992. He was on his way back to the United States from China, where, in typical Vickrey fashion, he was using novel theoretical ideas to advise a government about its economic policy, hoping to make life better for large numbers of people. I took the chance to approach him and introduce myself.(More)
Robo2 is the cell surface receptor for the repulsive guidance cue Slit and is involved in axon guidance and neuronal migration. Nephrin is a podocyte slit-diaphragm protein that functions in the kidney glomerular filtration barrier. Here, we report that Robo2 is expressed at the basal surface of mouse podocytes and colocalizes with nephrin. Biochemical(More)
Patients with IgG4-related disease (IgG4-RD) share histopathological characteristics that are similar across affected organs. The finding of infiltration with IgG4+ plasma cells in the proper clinical and histopathological contexts connects a large number of clinical entities that were viewed previously as separate conditions. The renal involvement in(More)