1.   As a message about debt repayment, it proved far more effective than a letter writing campaign.

2.   For the Profitboss, concentrating on positive cash-flow is ten times more effective than dabbling with negative cash-flow.

3.   However, managerial approaches are often perceived to be less effective than physical action.

4.   Regular light exercise is safer and more effective than occasional bouts of strenuous exercise.

5.   Second, Decentralized institutions are more effective than centralized institutions.

6.   Self-organizing maps are more effective than many algorithms for performing calculations such as those for aerodynamic flow.

7.   Some forms of political action are more effective than others.

8.   Some methods are more effective than others.

9.   Such investments are astoundingly profitable, but each new generation of a weapon is less effective than its predecessor in generating employment.