How can I create a nice case-distinction of a mixture of text (and potential math-environment), that is numerated (e.g. with i, ii, ...) and has no indent, i.e. all text should be justified on the right side?
\documentclass[15pt, a4paper]{scrartcl}
\usepackage{amsmath,amssymb,stmaryrd}
\usepackage{enumitem}
\begin{document}
\begin{enumerate}[i)]
\item Case $\Phi < 0$: Fishing-out problem (most obvious inventions first), $\dot A_i$ decreases , with $A \uparrow$, difficulty of innovation increases with state of the art of an economy
\item Case $\Phi = 0$: no external effects
\item Case $\Phi > 0$: positive external effects predominate - $\dot A_i$ increases with $A \uparrow$ - fundamental research with high spillover effects (differential calculus, electricity, semiconductors)
\end{enumerate}
\end{document}
No text should start before the orange line. And the orange line should be placed in relative position to the longest case-name. What might be the shortest way to achieve this? Thank you

Ok, let me present an older workaround I used: a tabular environment solves the indent problem. But enumeration needs to be done manually and this still doesnt look very nice:
\begin{center}
\begin{tabular}{l p{15cm} }
$1.) \rho > 0$ & time preference rate \\
$2.) d(j, \omega, t)$ & demanded quantity of goods of quality level $j$ of industry $\omega$ at time $t$ \\
$3.) \sum_{j=0}^\infty$ & all available quality levels $j$ of a consumer good $\omega$ can be consumed at the same time (\underline{in principle}) $\rightarrow$ however: only consumption of those goods with best quality adjusted price \\
\end{tabular}
\end{center}

Now the linespread between cases is too small und the horizontal spaces between the numeration 1.), 2.) ... is also too small. Hope you have another good idea :)



