11.  This is the economic force which pushes up national income.

12.  It follows that at any disequilibrium point, such as point C, economic forces will be pushing the market towards the general equilibrium position.

13.  Although more modest than the multibillion-dollar likes of Coca-Cola or Delta, the small businesses targeted by BellSouth together are a substantial economic force.

14.  And as economic forces blur national boundaries around the world, in nations rich and poor, politics is struggling to keep up.

15.  And the credit for defusing this bilateral time bomb goes not to political force but to plain old economic forces.

16.  And while the sociology of crime is imprecise, experts attribute that changing nature of crime to demographic shifts and economic forces.

17.  Appearing before the House Banking Committee last month, the chairman conceded that economic forces beyond his control are doing much of his job for him.

18.  As a result, the system is vulnerable, both to economic forces and a more conservative era in New York politics.

19.  As if economic forces were not daunting enough, casino owners here have also allowed their own internal bickering to continue.

20.  At root, many fault the Allagash men for resisting the economic forces that sometimes require workers not only to update their skills, but to leave their hometowns.