Check out this study, in particular the Appendix, by David MacDonald of the Canadian Center for Policy Alternatives, entitled:
Corporate Income Taxes, Profits and Employment: Performance of Canada's Largest Companies.
Analyzing a decade of data on the top 200 Canadian copies tax rates and payments, MacDonald makes the point that if anything, lower corporate tax rates over the past decade, have led to a lagging of the employment contribution of the companies most benefitting from the reductions. Yes, Canada isn't the United States. But, this research supports the notion I wrote about yesterday, that if you give corporations an inch of tax rate decreases, they'll take a mile of paying less taxes proportionately.
"Canadian governments are now losing $12 billion a year to 200 of Canada’s strongest companies, who are making 50% more in profit while paying 20% less in income tax; all while creating proportionally fewer jobs than the economy-wide average."
Do we really want to lose hundreds of billions of dollars more a year plus not have more jobs to show for it? (We only have $187 billion to go, before we hit zero contribution of corporations to the overall tax receipts of the country using last year's figures.)