deletions | additions       diff --git a/A simple model.tex b/A simple model.tex  index c7b5daf..8db6f49 100644  --- a/A simple model.tex  +++ b/A simple model.tex 
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\begin{align}  \label{eq:toy_a_lagged_state} a_{t} & = \mu_{a} + \zeta_{a,t} + \sigma_{a} w_{a,t} , \quad w_{\zeta_a,t+1} \overset{iid}{\sim} N(0,1) \\  \label{eq:toy_zetaa_state}  \zeta_{a,t} & = \rho_a \zeta_{a,t-1} + \sigma_{\zeta_a} w_{\zeta_a, t} , \quad w_{a,t} \overset{iid}{\sim} N(0,1) \end{align}