Key: The large bubbles represent the frequency of each theme and the phrases associated with it (the smallest bubbles) are used in the Chancellor's budget statement. The bubble size is also refelects how close in proximity these phrases are to each other in the text.
Corporation tax, which will be reduced to a new low of 20% from 2015/16, featured most prominently in the budget material.
The next two biggest themes were a discussion of the merits of more active monetary policy and new measures to help people up the housing ladder.
The fourth big theme was national insurance. The smallest employers will benefit from being let off the first £2,000 of employers' national insurance.