heteroskedastic_shocks-block does not accept multiple declarations
According to the manual, the same shock can appear multiple times. But
heteroskedastic_shocks;
var e_b;
periods 100:120;
values 0.01;
var e_a;
periods 100:119;
scales 0;
var e_a;
periods 120;
scales 0;
end;
results in
ERROR: fs2000_het.mod: line 28, col 3 - line 30, col 11: heteroskedastic_shocks: variable e_a declared twice test.mod