Adrien Henri Vigier
Postdoktorstipendiat - Institutt for samfunnsøkonomi
See personal homepage for further information.
Rudiger, Jesper & Vigier, Adrien Henri (2019)
Learning about analysts
Journal of Economic Theory, 180, s. 304- 335. Doi: 10.1016/j.jet.2019.01.001
We examine an analyst with career concerns making cheap talk recommendations to a sequence of traders, each of whom possesses private information concerning the analyst's ability. The recommendations of the analyst influence asset prices that are then used to evaluate the analyst. An endogeneity problem thus arises. In particular, if the reputation of the analyst is sufficiently high then an incompetent but strategic analyst is able to momentarily hide her type. An equilibrium in which the market eventually learns the analyst type always exists. However, under some conditions, an equilibrium also exists in which the incompetent analyst is able to hide her type forever.
Holden, Steinar; Natvik, Gisle James & Vigier, Adrien Henri (2018)
CREDIT RATING AND DEBT CRISES
We develop an equilibrium theory of credit rating in the presence of rollover risk. By influencing rational creditors, ratings affect sovereigns' probability of default, which in turn affects ratings. Our analysis reveals a pro‐cyclical impact of credit rating: In equilibrium the presence of a rating agency increases default risk when it is high and decreases default risk when it is low.
Goyal, Sanjeev & Vigier, Adrien (2015)
Interaction, protection and epidemics
Journal of Public Economics, 125, s. 64- 69. Doi: 10.1016/j.jpubeco.2015.02.010
Goyal, Sanjeev & Vigier, Adrien (2014)
Attack, defence, and contagion in networks
The Review of Economic Studies, 81(4), s. 1518- 1542. Doi: 10.1093/restud/rdu013
Armour, E. A. G. & Vigier, Adrien Henri (2005)
Inclusion of the strong interaction in low-energy hydrogen–antihydrogen scattering using a complex potential
Journal of Physics B: Atomic, Molecular and Optical Physics, 38(3), s. 47- 54. Doi: 10.1088/0953-4075/38/3/L01
|2011||University of Cambridge||PhD|
|2005||Université Paris VI||MSc in Mathematics|
|2017 - Present||BI Norwegian Business School||Assistant professor|
|2014 - 2017||University of Oxford||Associate professor|