Inada conditions
= Inada conditions
{c}
{title2=$U^\prime(0+)=\infty,\quad U^\prime(\infty)=0$}
The Inada conditions specify infinite marginal utility at zero consumption or wealth and zero marginal utility at infinity. For an increasing strictly <concave> <utility function>, they make the inverse marginal utility map cover all positive shadow prices, facilitating the <state-price budget constraint> method.