I am getting an error when I type:

$\~{c}_{it+1}} = c_{it+1}$ 

The error says:

You can't use `\spacefactor' in math mode. ... composite future consumption good $\~{c}

How I can modify the code so I use the accent above c_{it+1}.


You want $\tilde{c}_{it+1}} = c_{it+1}$.

Some accents have mathematical meaning, hence the warnings or errors.

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