Philipp Becker

4 Questions 2 Answers 0 Followers

Questions related from Philipp Becker

Unit Roots, PMG or FMOLS?

I am currently studying income inequality with a number of non-linear interaction and squared terms. While an initial fixed effects estimation looks good, there is evidence of non-stationarity and...

03 July 2022 9,486 0 View

How can I interpret time-dependent coefficients in Cox Model, given that theory doesn't indicate them?

I fitted a Cox PH Model and upon examination of the Schoenfeld residuals it became apparent that the proportionality assumption was violated by several variables. Following Box-Steffensmeier &...

13 September 2020 8,753 4 View

How can the Cox PH coefficients be interpreted when control variable fails PH assumption?

I fitted a Cox proportional hazard model and checked the proportionality assumption using R's cox.zph function, with the following output: chisq df p Var1...

11 September 2020 9,113 3 View

Possible to stratify Cox PH Model on continuous variable?

I'm currently working with event history data studying how long after implementation countries abolish certain policies. Regarding the policies I also have an index on how far the countries went...

07 September 2020 8,512 4 View