Changes

# '''Theory: ''' Economic theory papers are largely concerned with the DHCI problem. (p.5) #2 '''Empirical: ''' Papers that drift towards first including overlapping patents along with DHCI, and then begin abandoning the usage of DCHI. (p.5) #3 '''Discussion: ''' It seems that economists favor DHCI and overlaps, cite Shapiro (2001) and do more theoretical work; whereas legal scholars favor overlaps, cite Heller and Eisenberg (1998) and provide discussion. (p.30)