News

IIS - David Stark - 12/04/2019

NASP International and Interdisciplinary Seminars

David Stark (Columbia University)
Networks as Scopes: Observational Advantage Under Uncertainty

12 April 2019, 14.30
Room A
NASP Graduate School in Social and Political Sciences
Via Pace, 10 - Milan

Abstract

Networks can be like pipes through which information flows, or they can be like prisms through which identities are refracted. To this pair we add a third: networks can be like scopes through which observation can be magnified or blurred. By analyzing the networks formed by producers observing their competitors, we identify the scopic properties of two network structures – dyadic and triadic closure. Dyadic closure, measuring ego's exposure to his direct competitors in different markets, increases the ability to interpret competitors' observed behavior. Triadic closure, measuring the extent to which ego's competitors are exposed to each other in the markets in which ego is not present, reduces the diversity of views to which ego is exposed. We hypothesize that, in networks of observation among competitors, the higher the dyadic closure and the lower the triadic closure, the greater the performance of ego when coping with high market uncertainty. We test our hypothesis by analyzing data on the network of competition created by securities analysts and the stocks they cover. We find that the recommendations issued by an analyst with multiple exposure (high stock coverage overlap) to disconnected competitors (competitors with low stock coverage overlap in the stocks that the focal actor does not cover) yield abnormally high returns especially when confronted by more challenging, high risk, high reward, volatile stocks. 

This seminar is part of the NASP International and Interdisciplinary Seminars Series 2019.

Latest News

BBS - Jonathan Floyd…

BBS - Jonathan Floyd - 14/12/2022

  Brown Bag Seminars of Political PhilosophySeminar series Jo...

POLS IS - Raimondas …

POLS IS - Raimondas Ibenskas - 28/11/2022

 POLS Seminars Series   Raimondas Ibenskas (Universit...

MeMa - Ruud Luijkx -…

MeMa - Ruud Luijkx - 17/11-15/12/2022

MeMa - Methodology MattersCourseCausal Models Ruud LuijkxTilburg Univ...

Lecture - Richard Ca…

Lecture - Richard Caplan - 6/10/2022 University of Pavia

The University of Pavia is pleased to announce the Special 10th Anniv...

BBS - Yannis Stavrak…

BBS - Yannis Stavrakakis - 20/09/2022

Brown Bag Seminars of Political PhilosophySeminar seriesYannis Stavrak...

CfA - INTERSECTORAL …

CfA - INTERSECTORAL INNOVATION PhD Progamme

NASP is glad to announce     CALL FOR APPLICATIONfor theP...

Call 2022-2023

Call 2022-2023

  NASP Calls for Application for 19 Ph.D. positions for A.Y. 202...

IIS - David Levi-Fau…

IIS - David Levi-Faur - 24/06/2022

NASP International and Interdisciplinary Seminars   David ...

The Network

              ES CCA LOGO ENTE Orizz no fondatori Pos RGB                          Polito Logo 2021 BLU 2 comp                   

With the support of

         ML FCARIPLO cmyk  base 100mm                                 ES CSP logo 2020 RGB Orizzontale Positivo       

This site uses cookies

for the operation of the platform and for statistics . Continue if you agree.

I understand