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, 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
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
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
differences come from and how large are their effects? Using network analysis tools, we explore how different social network … can produce different network structures, leading to divergent levels of income. We compare calibrated model predictions … with data. The model and data agree that a one-standard-deviation increase in our index of network diffusion speed results …
Persistent link: https://www.econbiz.de/10012460191
of human capital and even the formulation of norms and values. The systematic empirical study of network formation - the … article reviews prominent research on the empirical analysis of network formation, with an emphasis on contributions made by …
Persistent link: https://www.econbiz.de/10012458252
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
We develop and analyze a tractable empirical model for strategic network formation that can be estimated with data from … a single network at a single point in time. We model the network formation as a sequential process where in each period …, the characteristics of the potential partner, and on features of the current state of the network, such as whether the two …
Persistent link: https://www.econbiz.de/10012462613
We define a general class of network formation models, Statistical Exponential Random Graph Models (SERGMs), that nest …' (including ERGMs) parameters estimated from the observation of a single network are consistent (i.e., become accurate as the … exponentially slow mixing times for many specifications, we show that by reformulating network formation as a distribution over the …
Persistent link: https://www.econbiz.de/10012458390
Financial network structure is an important determinant of systemic risk. This paper examines how the U.S. interbank … network evolved over a long and important period that included two key events: the founding of the Federal Reserve and the …, initially reducing overall network concentration. The network became even more focused on Fed cities during the Depression, as …
Persistent link: https://www.econbiz.de/10012479982