I guess I'll ruin the bandwagon.<p>Everyone here believes in trickle-down economics to the extent that they agree with the statement, 'mass starvation is bad,' or to the degree that they believe in benefits from specialization of labor or the economic vibrancy of cities.<p>I would expect, in this 'debunking' paper, to find conclusions based on short timelines (certainly less than one generation) and no compelling analysis of taxes paid beyond income and payroll taxes, meaning that the overall taxes paid are not dealt with. It's doubtful that the data explains regional variations.<p>In reality, upon skimming the paper, the authors make the unstated assumption that income inequality has a static equilibrium. Much like psychology papers, where most conclusions should be appended with, "... for social science undergrad students in Western universities," this one should be given the caveat, "..in rich Western countries that have below-replacement fertility." The longest horizon of analysis is 5 years.<p>This paper attempts something unachievable, fails, and then proclaims success.