Iscuss how the Credit crunchcould affect corporate decision making over the next few years.

This is an essay in the subject: The economics of corporate finance.

Hence, it should contain lots of economic theory and some financial stuff too.

Economic tools should include the selection and use of appropriate economic and/or quantitative analysis, an undestanding of relevant economic theories and institutions, and the use of real world examples where relevant and appropriate.
Cross country comparisons, real world applications and policy implications should also be used.
If/where appropriate the following topics should be commented upon:
Firms financial structure traditional argument, miller-modigliani approaches.

The dividend decision

The investment decisioninvestment appraisal

Orthodoxy vs behaviouralistdiscuss validity/appropriateness of efficient market theory, capital asset pricing model etc.