This concerns state legislatures, and the paper is from Noel Campbell and David Mitchell:
As political power is consolidated in either party, economic freedom increases. This is consistent with a model wherein the median voter has effective agency control with positive monitoring costs and prefers a particular level of so-called economic freedom. These results are inconsistent with Leviathan models of state legislatures.
In other words, in this setting divided government is leading to greater government power rather than limiting it. Could the same be true at the federal level as well?
Hat tip goes to Kevin Lewis.