Complex sentence: In the early 1920s, both prices and wages changed more quickly than today, and thus employers may have been quicker to offer reduced wages to returning troops, hence lowering their production costs, and lowering their prices.
Split into simpler sentences: In the early 1920s, both prices and wages changed more quickly than today. Employers may have been quicker to offer reduced wages to returning troops, hence lowering their production costs, and lowering their prices.