By Dan Weil The bulk buyers are worried about shortages and inflation. Inflation concerns make people buy before prices increase again. You may have noticed shortages of certain items at your local grocery store. Some of that is due to supply-chain disruption, which is delaying the transport of goods to retailers. But some of it is also a return to the consumer stockpiling of food and household items that was prominent in the early days of the pandemic two years ago, The Wall Street Journal reports. The bulk buyers are worried about shortages and inflation. Inflation concerns make people want …