OxTalks is Changing
OxTalks will soon move to the new Halo platform and will become 'Oxford Events.' There will be a need for an OxTalks freeze. This was previously planned for Friday 14th November – a new date will be shared as soon as it is available (full details will be available on the Staff Gateway).
In the meantime, the OxTalks site will remain active and events will continue to be published.
If staff have any questions about the Oxford Events launch, please contact halo@digital.ox.ac.uk
Conterfactual analysis with artificial controls: inference, high dimensions and nonstationarity
Recently, there has been growing interest in developing statistical tools to conduct counterfactual analysis with aggregate data when a single ``treated’‘ unit suffers an intervention, such as a policy change, and there is no obvious control group. Usually, the proposed methods are based on the construction of an artificial counterfactual from a pool of ``untreated’‘ peers, organized in a panel data structure. In this paper, we consider a general framework for counterfactual analysis for high dimensional, non-stationary data with either deterministic and/or stochastic trends, which nests well-established methods, such as the synthetic control. Furthermore, we propose a resampling procedure to test intervention effects that does not rely on post-intervention asymptotics and that can be used even if there is only a single observation after the intervention. A simulation study is provided as well as an empirical application where the effects of price changes on the sales of a product are measured.
Link to paper: papers.ssrn.com/sol3/papers.cfm?abstract_id=3303308
Please sign up for meetings here: docs.google.com/spreadsheets/d/1qPQqXivNYBDNJY_0OdHcZfjslHLu5UtSVQMd0LpETqc/edit#gid=0
Date:
29 November 2019, 14:15
Venue:
Manor Road Building, Manor Road OX1 3UQ
Venue Details:
Seminar Room C
Speaker:
Marcelo Medeiros (Pontifical Catholic University of Rio de Janeiro)
Organising department:
Department of Economics
Part of:
Nuffield Econometrics Seminar
Booking required?:
Not required
Audience:
Members of the University only
Editor:
Melis Clark
