Causes of Demand Curve Shifts — Expected Price Changes

The first thing to remember about the law of  demand is “all else constant.” What we are holding constant includes expected future prices.  This from the Financial Times:

Chinese consumers, increasingly alarmed at the rising cost of living, cleared supermarket shelves this week of shampoos, soaps and detergents after state media said four consumer goods companies … would raise prices by between 5 per cent and 15 per cent.

Via Marginal Revolution.