RDP 2015-13: Seasonal Adjustment of Chinese Economic Statistics Equation

\begin{array}{l} (1 - δ_{1} L^{s} - \dots - δ_{P} L^{s P}) (1 - γ_{1} L - \dots - γ_{p} L^{p}) {(1 - L)}^{d} {(1 - L^{s})}^{D} z_{t} \\ = (1 - θ_{1} L^{s} - \dots - θ_{Q} L^{s Q}) (1 - μ_{1} L - \dots - μ_{q} L^{q}) ε_{t}, \end{array}