> To put this problem starkly: allocative efficiency and thus an efficient market economy is impossible in the presence of private ownership.
What the paper's early pages are saying is that study A found that things could be allocated more efficiently, and study B found that sometimes people hold out from selling things now to gain more later, therefore to increase the efficiency of global (literally) allocation of resources, people should be forced to sell things or pay more taxes to keep them.
This seems to have several problems on its face, that might be dealt with later, but still:
- This is all theory. There is no global optimum to observe, no matter how many papers might be written. Only to theorise about.
- This is relative, and time-sensitive. I might value a property at X because at that moment it's worth that much to me. It might change in the future, or depend on how markets are doing. Should I instantly sell because I have an ice cream shop and people are all eating gelato, and I can't afford the tax so I reduce the valuation to a point where some shark can grab the building?
- Perfect is the enemy of good, particularly when perfect is so poorly defined. This can get a lot worse much more easily than it can get a bit better.