Which of the following is NOT mentioned as a factor to make retail sales rise?

Consumers spent more on autos, furniture, clothing and gas in July, pushing up retail sales by the largest amount in four months. The gain signaled that Americans are a little more confident in the economy and could help dispel fears that the country is headed for another recession. Retail sales rose 0.5% last month, the Commerce Department said Friday. It was the best showing since March. The government also revised sales higher in the previous two months. Even after excluding sales at gas stations, which were influenced by an increase in gas prices, sales rose 0.3% last month. The better-than-expected retail sales report is the second strong signal on the economy in as many days. (6) Many retailers reported last week that back-to-school promotions had helped boost sales in July. Target, Macy’s and luxury chain Saks all reported gains that beat Wall Street expectations.