1. Why autocorrelation in regression residuals
   1. Misspecification Rational: if we are missing relevant variables in 𝐗 that exhibit a spatial pattern, their spatial pattern will spill over into the regression residuals 𝐞
   2. Spatial Process Rational: The spatial objects exhibit some spatial exchange relationships
   3. Spatial Aggregation Rational
2. Main Topic 2
3. Main Topic 3
4. Main Topic 4
5. Main Topic 5
6. Main Topic 6
7. Main Topic 7