I am running following regression model:
After the regression, i wanted to calculate the margins for two variables 'fnedpro_bx_w fedpro_bx_w' and run the following classical margin command
The output is

now, i want to calculate whether the difference between these marginal effects is significant. How can I proceed?
Code:
probit f.audit fnedpro_bx_w fedpro_bx_w lnbs_w nedpro_bx_w lnbm_w ceo_chair csr_com sustain_comp rd_int_w cap_int_w roa3_w tq_w cash_ta_w lev_w size_w i.year i.sic3 i.cnt
Code:
margins, dydx(fnedpro_bx_w fedpro_bx_w)
now, i want to calculate whether the difference between these marginal effects is significant. How can I proceed?
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