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Evaluating health risks : an economic approach

Johansson, Per-Olov - 1995

Persistent link: https://www.econbiz.de/10013493868

Count data models : estimator performance and applications

Johansson, Per-Olov - 1993

Persistent link: https://www.econbiz.de/10000871988

Dynamic treatment assignment : the consequences for evaluations using observational data

Fredriksson, Peter; Johansson, Per-Olov - In: Journal of business & economic statistics : JBES ; a … 26 (2008) 4, pp. 435-445

Persistent link: https://www.econbiz.de/10003772281

Testing for nonparametric identification of causal effects in the presence of a quasi-instrument

DeLuna, Xavier; Johansson, Per-Olov - 2012

The identification of average causal effects of a treatment in observational studies is typically based either on the unconfoundedness assumption or on the availability of an instrument. When available, instruments may also be used to test for the unconfoundedness assumption (exogeneity of the...

Persistent link: https://www.econbiz.de/10009554447

Testing for nonparametric identification of causal effects in the presence of a quasi-instrument

DeLuna, Xavier; Johansson, Per-Olov - 2012

Persistent link: https://www.econbiz.de/10009558957

A simple approach to treatment effects on durations when the treatment timing is chosen

Lee, Myoung-jae; Johansson, Per-Olov - 2013

When a treatment unambiguously defines the treatment and control groups at a given time point, its effects are usually found by comparing the two groups' mean responses. But there are many cases where the treatment timing is chosen, for which the conventional approach fails. This paper sets up...

Persistent link: https://www.econbiz.de/10009717700