Government statistics on worker productivity combine many errors of aggregation such as "average prices" and the total purchasing power of money. So it's unlikely that productivity numbers tell us much that's useful.
Shortcomings in the government's handling of monetary matters, of credit expansion, and the disastrous consequences of lowering the rate of interest gave birth to the ideas which finally generated the slogan "stabilization."
Values of goods are not static things that can be used for central planning. Values apply only to a particular transaction at a particular place and at a given time by human beings.
Market prices reveal critical information about sellers, buyers, and market demand. But government interference in markets substitutes a fake version of reality that leads to impoverishment.
If local prices are sending the message that everything's perfectly normal, residents may be overly optimistic about the risks they face during natural disasters.