A quartet of semigroups for model specification, robustness, prices of risk, and model detection

EW Anderson, LP Hansen… - Journal of the European …, 2003 - academic.oup.com
A representative agent fears that his model, a continuous time Markov process with jump
and diffusion components, is misspecified and therefore uses robust control theory to make …

Nobel lecture: Uncertainty outside and inside economic models

LP Hansen - Journal of Political Economy, 2014 - journals.uchicago.edu
Asset pricing theory has long recognized that financial markets compensate investors who
are exposed to some components of uncertainty. This is where macroeconomics comes into …

Beliefs, doubts and learning: Valuing macroeconomic risk

LP Hansen - American Economic Review, 2007 - pubs.aeaweb.org
From an econometric standpoint, the outcome of the rational expectations approach is the
availability of extra information about the underlying economic model. This information is …

Climate change and uncertainty: An asset pricing perspective

M Barnett - Management Science, 2023 - pubsonline.informs.org
Climate change and uncertainty about its potential consequences has become a central
concern for economists, investors, and policymakers alike. I use a stochastic, dynamic …

Robust identification of investor beliefs

X Chen, LP Hansen… - Proceedings of the …, 2020 - National Acad Sciences
This paper develops a method informed by data and models to recover information about
investor beliefs. Our approach uses information embedded in forward-looking asset prices in …

Epidemic responses under uncertainty

M Barnett, G Buchak… - Proceedings of the …, 2023 - National Acad Sciences
We examine how policymakers react to a pandemic with uncertainty around key
epidemiological and economic policy parameters by embedding a macroeconomic SIR …

Robustness and ambiguity in continuous time

LP Hansen, TJ Sargent - Journal of Economic Theory, 2011 - Elsevier
We use statistical detection theory in a continuous-time environment to provide a new
perspective on calibrating a concern about robustness or an aversion to ambiguity. A …

[HTML][HTML] Macroeconomic uncertainty prices when beliefs are tenuous

LP Hansen, TJ Sargent - Journal of Econometrics, 2021 - Elsevier
Investors face uncertainty over models when they do not know which member of a set of well-
defined “structured models” is best. They face uncertainty about models when they suspect …

Goodness-of-fit test for stochastic processes using even empirical moments statistic

K Maraj-Zygmąt, G Sikora, M Pitera… - … Journal of Nonlinear …, 2023 - pubs.aip.org
In this paper, we introduce a novel framework that allows efficient stochastic process
discrimination. The underlying test statistic is based on even empirical moments and …

[图书][B] Uncertainty within economic models

LP Hansen, TJ Sargent - 2014 - books.google.com
Written by Lars Peter Hansen (Nobel Laureate in Economics, 2013) and Thomas Sargent
(Nobel Laureate in Economics, 2011), Uncertainty within Economic Models includes articles …