\begin{eqnarray}
\BRatE_{t} = \frac{\BLevE_t}{\GDPLev_t} & = & (1-\kapShare) \left(1-\underbrace{\frac{\erate\XperGro}{\EmpGro}}_{\equiv \LGro}\right) \sum_{n=0}^{+\infty}\LGro^{n} \bRatE_{t,t-n}, \label{eq:LGro} \label{eq:BRatEIndAgg}
\end{eqnarray}
