31.   As a huge buyer of a stock, you increase the demand for the investment and therefore, its price.

32.   As the government buys back debt securities and issues fewer Treasuries, there has been increased investor demand for those securities.

33.   As the popularity of video games increased market demand for better technology, it was predictable that virtual reality would become the newest frontier.

34.   As the government cuts benefits, that should increase the demand for private insurance.

35.   As world economies grow, industrial production tends to rise, increasing demand for raw materials.

36.   At the same time, advances in medicine, from cancer treatments to organ transplants, have greatly increased the demand for blood.

37.   At the same, Asian economies are recovering from a slump, increasing global demand.

38.   At the same time, low prices increased demand from jewelry makers and other manufacturers that use gold in their businesses, traders and analysts said.

39.   At the same time, low prices increased demand from jewelry makers and other manufacturers who use gold in their businesses, traders and analysts said.

40.   Bad weather is good for coal because it increases electricity demand for a variety of uses, including lighting and heating for offices and factories.