With price inflation/deflation the function of measure of value gets damaged.
If a tree grows 1 inch, is the ruler damaged because you get a different length?
No
If you increase the length of an inch by %10, is the tree %10 taller?
If you increase the length of an inch and everybody knows it at the same time, the measure would be equivalent. But a contract denominated in inches will change its contents. Will all the contracts denominated in inches be changed at that same time?
If the physicists decide tomorrow that the meter will increase its length by 10%, all the books written before the change will become wrong.
It's monetary inflation/deflation that damages the measure of value.
Price inflation/deflation damages the measure of value, but since monetary inflation/deflation almost always lead to price deflation/inflation, they damage the measure of value.
Agreed. But I think price deflation can lead to miss-allocation of resources too. For example, a business closed when it would be profitable without price deflation.
If the cost of the businesses product goes down because of efficient competition and it can't stay afloat, then it deserves to go out of business. The market as correctly allocated resources to it's competitor.
Where is the miss-allocation?
Printing currency and giving it so someone is a miss-allocation of resources; stealing purchasing power from people holding currency, limiting their ability to allocate the resources they command.
I meant that efficient business can disappear because of deflation in the same way that inefficient business can appear because of inflation.
With a changing value of money, every entrepreneur can afford to be less efficient in his field if he can compensate this by knowing more about the changes in the value of money and how to predict them.
Ultimately, speculate becomes the more profitable business.
From J parsson's "Dying of money":
"Speculation alone, while adding nothing to Germany's wealth, became one of its largest activities. The fever
to join in turning a quick mark infected nearly all classes, and the effort expended in simply buying and selling
the paper titles to wealth was enormous. Everyone from the elevator operator up was playing the market. The
volumes of turnover in securities on the Berlin Bourse became so high that the financial industry could not
keep up with the paperwork, even with greatly swollen staffs of back-office employees, and the Bourse was
obliged to close several days a week to work off the backlog."
This is not equally true for deflation, because with it you have less trade "than it would be natural", and speculation needs trades.
With inflation, there are more trades "than it would be natural".