Simplify the following text for a Grade 12 native English-speaking person.
Original: He criticises frequently , in his column in The Irish Times , the loss of competitiveness that occurred and the inflation caused by the tax cuts and excessive public spending increases of the Celtic Tiger era .
Simplified: He was a frequent critic , in his column in The Irish Times , of the loss of competitiveness that occurred and the inflation caused by the tax cuts and excessive public spending increases of the Celtic Tiger era .