For the AS shock argument to hold true, we would need to see a period of both high unemployment and inflation directly following the shock. However, on first inspection, the data suggests that over the period, rates of inflation and unemployment are moving in exactly opposite direction. The working hours reform occurred, as pointed out by Bowie, at the beginning of 1919. Dowie comments that roughly 91. 4% of the overall reduction in hours made over the two year period of January 1919 to December 1920, had taken place by July 1919.