# Question: the coefficients for the month of observation imonth2 imonth3 etc...

###### Question details

**The coefficients for the month of observation,
_Imonth_2, _Imonth3, etc. are mean effects (dummy variables) that
shift the intercept of our demand equation for each month of the
sample. In terms of what we know about gasoline demand, why might
it be important to model different baseline gasoline consumption by
month?**