Dynamic economic theory and evolutionary economics are both subject to the trade-off between explanation power and accounting for novelty. The present paper makes a contribution to filling in this gap basing on a general model including production and taxes. Our notion of an open loop evolution equilibrium is based on arguments from the gradual vs. bang-bang tax reform controversy and from the debate on optimal macroeconomic policy design. The term kinetic indicates that, in contrast to traditional comparative statics, our approach neither hinges on the uniqueness of equilibria, nor is confined to the analysis of prescribed parameter variations.