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<div dir="ltr"><font color="#000000" size="2" face="Verdana">Hello,</font></div>
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<div dir="ltr"><font face="verdana">I estimated four types of spatial probit models via instructions from LeSage's (2009) Book "Introduction to Spatial Econometrics" (MCMC-Method):</font></div>
<div dir="ltr"><font face="verdana">1.) Spatial Autoregressive Probit (SAR Probit)</font></div>
<div dir="ltr"><font face="verdana">2.) Spatial Durbin Probit (SD Probit)</font></div>
<div dir="ltr"><font face="verdana">3.) Spatial error model Probit (SEM Probit)</font></div>
<div dir="ltr"><font face="verdana">4.) Spatial durbin error model Probit (SDEM Probit)</font></div>
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<div dir="ltr"><font face="verdana">I need some help with the calculation of the (average) marginal effects (direct, indirect, total) for model 2-4. Please, check the attachment for the formulas. Is the calculation for the SD Probit model ok? If I am right,
the SEM Probit does not require a calculation of direct and indirect effects. Instead we use the same calculation for marginal effects as in the non-spatial probit model.</font></div>
<div dir="ltr"><font face="verdana">For the SDEM Probit model we also use the non-spatial calculation, whereas the coefficients of the durbin lags can be interpreted as indirect effects.</font></div>
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<div dir="ltr"><font face="verdana">A more general question. Is it possible that only some of the exogenous variables have spatial lags? Do the estimation-routine and formula for the calculation of marginal effects stay the same as in the SD Probit model?</font></div>
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<div dir="ltr"><font face="verdana">Thanks in advance </font></div>
<div dir="ltr"><font face="verdana"></font> </div>
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