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contagion from purely observational data. It is especially helpful as a corrective to some of the more extreme statements of …
Persistent link: https://www.econbiz.de/10014621097
Due to its simplicity and familiarity, the Gaussian copula is popular in calculating risk in collaterized debt obligations, but it imposes asymptotic independence such that extreme events appear to be unrelated. This restriction might be innocuous in normal times, but during extreme events, such...
Persistent link: https://www.econbiz.de/10011010055
Persistent link: https://www.econbiz.de/10010532095
formation of social ties due to matching individual traits; social contagion, also known as social influence; and the causal … imitation (a form of social contagion) can produce substantial correlations between an individual's enduring traits and his or …
Persistent link: https://www.econbiz.de/10009294312
, financial contagion, and so on). Often, good and bad items may propagate along the same networks, so individuals must weigh the …
Persistent link: https://www.econbiz.de/10009246894
time. The model illustrates how social contagion leads to common community perceptions of development risk and opportunity …
Persistent link: https://www.econbiz.de/10009277918
We survey the literatures on the economic consequences of the structure of social networks. We develop a taxonomy of 'macro' and 'micro' characteristics of social inter-action networks and discuss both the theoretical and empirical findings concerning the role of those characteristics in...
Persistent link: https://www.econbiz.de/10011165640
context to study this problem. It has been conjectured that adoption and usage patterns of a new drug by physicians—“contagion … (linear and quadratic) and individual physician-level contagion and marketing activity (both individual level and market level …). Our contagion measure aggregates the adoption behavior of geographically near physicians for each physician in our sample …
Persistent link: https://www.econbiz.de/10008787786
This paper documents the existence and magnitude of contiguous word-of-mouth effects of signal quality of a video-on-demand (VOD) service on customer acquisition. We operationalize contiguous word-of-mouth effect based on geographic proximity and use behavioral data to quantify the effect. The...
Persistent link: https://www.econbiz.de/10008788035
We survey the literature on the economic consequences of the structure of social networks. We develop a taxonomy of "macro" and "micro" characteristics of social interaction networks and discuss both the theoretical and empirical findings concerning the role of those characteristics in...
Persistent link: https://www.econbiz.de/10011794582