I don't think you can put an exact figure on it, but I think you can confidently say that it is big, that it is growing, and that we need to deal with it.
February 1st, 2011 / 9:35 a.m.
Director, Centre for Tax Policy and Administration, Organisation for Economic Co-operation and Development
I don't think you can put an exact figure on it, but I think you can confidently say that it is big, that it is growing, and that we need to deal with it.
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