The problem is that markets, controlled or free, are at a level of complexity far beyond our capacity to effectivel control from a top down perspective, there have been countless examples with top down legislation have had unforeseen consequences (or overtly controlled markets in Soviet Union). The idea with free market capitalism is that as much as possible the transactions/pricing between parties should allow for systemic optimisation.
There are two main problems, a) not all transactions are captured appropriately, b) we fuck with the system from a top down perspective so much as to completely undermine the premise of the low level optimisation. Oftentimes it's in relation to (a) that we do (b), in (b) we should be aiming to provide recompense to the side of the hidden transaction via the government; unfortunately the government oversteps here and tries to optimise the system themselves.
There are two main problems, a) not all transactions are captured appropriately, b) we fuck with the system from a top down perspective so much as to completely undermine the premise of the low level optimisation. Oftentimes it's in relation to (a) that we do (b), in (b) we should be aiming to provide recompense to the side of the hidden transaction via the government; unfortunately the government oversteps here and tries to optimise the system themselves.