S U R V S E γ , c − 1 = S U R V S E γ , c − 1 t − 1 ∗ A n a l F u n c ( G D P P C P γ ) A n a l F u n c ( G D P P C P γ t − 1 ) + C u l t S h S E γ − c u l t u r a l t + s u r v s e a d d γ t {\displaystyle SURVSE_{\gamma ,c-1}=\mathbf {SURVSE} _{\gamma ,c-1}^{t-1}*{\frac {AnalFunc(GDPPCP_{\gamma })}{AnalFunc(GDPPCP_{\gamma }^{t-1})}}+\mathbf {CultShSE} _{\gamma -cultural}^{t}+\mathbf {survseadd} _{\gamma }^{t}}
where
C u l t S h S E γ − c u l t u r a l t = F ( S U R V S E γ , c − 1 t − 1 , A n a l F u n c ( G D P P C P γ t − 1 ) {\displaystyle CultShSE_{\gamma -cultural}^{t}=F(\mathbf {SURVSE} _{\gamma ,c-1}^{t-1},AnalFunc(GDPPCP_{\gamma }^{t-1})}
