Showing 1 - 10 of 462
linked fields. Our analysis uses 1.8 million U.S. patents and their citation properties to map the innovation network and its … strength. Past innovation network structures are calculated using citation patterns across technology classes during 1975 …-1994. The interaction of this pre-existing network structure with patent growth in upstream technology fields has strong …
Persistent link: https://www.econbiz.de/10012455897
, summary network parameters (e.g., the degree distribution or transitivity index); and (iii) empirical models of strategic … network formation admitting interdependencies in preferences. Current research challenges and open questions are also …
Persistent link: https://www.econbiz.de/10012480521
This paper presents and structurally estimates a model of endogenous network formation and legislative activity of … of Congress as exogenously given and instead embed it in a model of endogenous network formation useful for developing …
Persistent link: https://www.econbiz.de/10012455924
We develop a theoretical model of security investments in a network of interconnected agents. Network connections … strategic substitutes. In a general (non-symmetric) network, this implies that underinvestment by some agents will encourage … symmetric or locally tree-like. We also characterize the impact of network structure on equilibrium and optimal investments …
Persistent link: https://www.econbiz.de/10012459488
Pharmaceutical companies' marketing efforts primarily target physicians, often through individual detailing that entails monetary or in-kind transfers. We study how peer influence broadens these payments' reach beyond the directly paid physicians. Combining Medicare prescriptions and Open...
Persistent link: https://www.econbiz.de/10012480282
We characterize the evolution over time of a network of credit relations among financial agents as a system of coupled … network of liabilities among agents. The average level of risk diversification of the agents coincides with the density of … links in the network. In addition to a process of diffusion of financial distress, we also consider a discrete process of …
Persistent link: https://www.econbiz.de/10012463991
financial institutions. Focusing on a multi sector economy linked through a supply network, we show how structural properties of … the supply network determine both whether aggregate volatility disappears as the number of sectors increases (i … aggregate output from its mean) to sector-specific volatility and to the structural properties of the supply network …
Persistent link: https://www.econbiz.de/10012462141
perspectives: (1) individual level (the degree to which team members specialize vs. work as generalists), (2) activity level (the … degree to which activities are concentrated among few team members vs. distributed among many) and (3) the intersection … explore team-based knowledge production using a newly available type of data - the disclosures of author contributions on …
Persistent link: https://www.econbiz.de/10012456434
The functioning and well-being of any society and organization critically hinges on norms of cooperation that regulate …
Persistent link: https://www.econbiz.de/10012458432
In this note, we consider a broad class of network models where a large number of heterogeneous agents simultaneously …
Persistent link: https://www.econbiz.de/10012481140