Sandbox

$SwingEffects_{r,t}=timeadj*\mathbf {swingstsdem} _{r=Swinger,p=1}*(WDemoc_{t-1}-DEMOCPOLITY_{r=Swingee,t-1}+timadj*\mathbf {swingstdem_{r=Swinger,p=2}} *(DEMOCPOLITY_{r=Swinger,t-1}-DEMOCPOLITY_{r=Swingee,t-1})+timadj*\mathbf {swingstdem_{r=Swinger,p=3}} *(RgDemoc-DEMOCPOLITY_{r=Swingee,t-1})$

where timeadj=.2

$WDemoc_{t-1}={\frac {\sum ^{R}DEMOCPOLITY_{r,t-1}}{R}}$

else

$SwingEffects_{r,t}=0$