This is a huge topic with plenty of research to explore for your dissertation and could lead to a very fascinating dissertation. Take a look at some of our suggestions below:
‘The time for a return to Keynesianism has returned’: A speculation for the future
The Keynesian solution to the sustained depression of the 1930s was for governments to spend their way out of recession. This dissertation asks, given the nature of the continuing global financial crisis, coupled with the problems in the Eurozone, now that France has elected its first socialist president for seventeen years whether it is time to abandon the tight fiscal monetarism of the 1990s and return to Keynesianism. This is a dissertation that is primarily dependent upon secondary sources although interviews with leading economists could also be used to add a primary source element to the study.
Suggested initial topic reading: