I'm trying to build a gravity model for international trade. The regression equation goes as follows:
Ln[Trade_(ijt)] = a + b*ln[gdp_(it)] + c*ln[gdp_(jt)] + d*ln[distance_(ij)] +e_(ijt)
i = country A,
j = country B,C... & Z, (8 countries)
t = time (from 2001 to 2017)
So how do I fit this model in JMP? I only know OLS and someone told me this should be done with a mixed model.
Documentation on Mixed Models is found in the Fitting Linear Models book, installed when JMP was installed on your system. It is available under the pull down menu.
Help==>JMP Documentation Library...………….Fitting Linear Models, Page 184 in the JMP 15 release
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