The past week brought more bad news. Retail sales in June were weaker than expected, and consumer confidence fell, causing economists to downgrade their estimates for economic growth yet again. It’s a familiar routine by now. Forecasters in Washington and on Wall Street keep saying the recovery’s problems are temporary — and then they redefine temporary.

If you’re looking for one overarching explanation for the still-terrible job market, it is this great consumer bust. Business executives are only rational to hold back on hiring if they do not know when their customers will fully return. Consumers, for their part, are coping with a sharp loss of wealth and an uncertain future (and many have discovered that they don’t need to buy a new car or stove every few years). Both consumers and executives are easily frightened by the latest economic problem, be it rising gas prices or the debt-ceiling impasse.

Earlier this year, Charles M. Holley Jr., the chief financial officer of Wal-Mart, said that his company had noticed consumers were often buying smaller packages toward the end of the month, just before many households receive their next paychecks. “You see customers that are running out of money at the end of the month,” Mr. Holley said.

In past years, many of those customers could have relied on debt, often a home-equity line of credit or a credit card, to tide them over. Debt soared in the late 1980s, 1990s and the last decade, which allowed spending to grow faster than incomes and helped cushion every recession in that period.

Now, the economic version of the law of gravity is reasserting itself. We are feeling the deferred pain from 25 years of excess, as people try to rebuild their depleted savings. This pattern is a classic one. The definitive book about financial crises has become “This Time Is Different: Eight Centuries of Financial Folly,” published in 2009 with exquisite timing, by Carmen M. Reinhart, now of the Peterson Institute for International Economics, and Kenneth S. Rogoff, of Harvard.