| A reconciliation of the statutory U.S. federal tax rate to the company’s effective tax rate is as follows: | |||||||||
| For the year ended December 31: | 2013* | 2012* | 2011* | ||||||
| Statutory rate | 35 | % | 35 | % | 35 | % | |||
| Foreign tax differential | (14) | (11) | (10) | ||||||
| State and local | (0) | 1 | 2 | ||||||
| Domestic incentives | (3) | (1) | (1) | ||||||
| Other | (2) | (0) | (1) | ||||||
| Effective rate | 16 | % | 24 | % | 25 | % | |||