Ongoing activities

In preparation:

• Discussion paper with preliminary title "Instrument-free inference for linear simultaneous regression models; improved variance estimation and options to cope with heteroskedasticity" (joint with Sebastian Kripfganz) is underway.

• Earlier discussion paper "Reassessment of classic case studies in labor economics with new instrument-free methods" (joint with Sebastian Kripfganz) will be revised, probably leading to two separate papers.

Latest achievements:

• 15 April 2025: Gave lunchtime seminar at University of Amsterdam titled "Instrument-free inference for linear simultaneous regression models; improved variance estimation and options to cope with heteroskedasticity", see slides.

• 31 July 2024: Gave invited address at the Singapore Economic Review Conference 2024 (July 31 - August 2) titled "Instrument-free inference for linear simultaneous regression models; improved variance estimation and options to cope with heteroskedasticity".

• January 2023: The printed version has appeared now of: "Instrument-free inference under confined regressor endogeneity and mild regularity", Econometrics and Statistics 25 (2023), 1-22.