11.   Retail sales are a gauge of consumer spending, which accounts for two-thirds of economic activity.

12.   Sport is now recognized as an important sector of economic activity.

13.   The Asian Pacific Rim is a major world centre of commerce, industry, and economic activity.

14.   The current level of economic activity will influence business confidence.

15.   The government had centralized political power and imposed rigid controls on economic activity.

16.   The image presented was of potentially active individuals bereft both of health and satisfaction through enforced retirement from economic activity.

17.   The level of economic activity has increased.

18.   The tax breaks will stimulate economic activity.