| This is a kind of "market will solve all" naivety. In a functioning market, this might work, but it overlooks the ability of corporations to game the system via one or two self-interested jurisdictions. The key problem is that corporations can avail themselves of the public goods (infrastructure, public education, public order) and then use accounting maneuvers to shift profits to jurisdictions that will not tax them. Some jurisdictions don't provide much in the way of public goods (small island states) or see an opportunity to raise some modest taxes on money they would otherwise never see (eg the Netherlands). So you end up with the (individual) taxpayers of some countries subsidising these corporations, other countries profiting modestly and the corporations keeping most of the tax money. Is this what an efficient market would deliver? An unfair and unsustainable situation? According to your theory the countries should compete with each other until their taxes are very low and their subsidies are very high, because that would reflect "efficiency". But what is the incentive for countries to do this? A rational country in the this market would set taxes to balance out the public goods provided. But because of profit shifting this is impossible, no matter how efficient they are. Yellen's plan is a rational response to this. |
Countries can easily tax income generated by foreign corporations within their jurisdiction.
What you and Yellen are advocating risks imposing on the entire world an economic and tax system that may be far from optimal, to address a risk that can be mitigated through numerous other methods.