How to interpret the POLICY AND TRANSITION FUNCTIONS?

Stochastic simulations
1

I set the household budget and govt budget. However, when i give the variable tr a shock “e”, the var cbdc receive a negative shock. Why it happens?

c + i + cbdc = w*n + (Rk*k + RCBDC(-1)*cbdc(-1)/pi) + tr;
tr + ( RCBDC(-1)*cbdc(-1)/pi) = (cbdc);
tr =  (1-rho)*tr0 + (rho)*tr(-1)+ e;

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2

Only you can answer that question because you built the model. Looking at the equations, it is most likely a general equilibrium effect.