Which preposition to use with deflation

of Occurrences 2%

But when in the history of American business was there such a volume of broken faith as in the drastic deflation of 1920?

in Occurrences 1%

In the recent deflation in commodity values, there was widespread "welching" among business men who had theretofore been classed as reputable.

through Occurrences 1%

The most outstanding sign of this was the abandonment of restrictions on the minting of copper coin, in order to prevent deflation through insufficiency of payment media.

Which preposition to use with  deflation