For the past fifteen years, Colombia has been engaged in a grand experiment in decentralization. Since 1986, subnational government spending has increased dramatically, as the regions have assumed greater control of health and education programs and other local services, and an increasing...

The federal government is reducing its GST rate from 7% to 5%. We examine a broader reform in which this reduction in federal tax rates and revenues is accompanied by a similar reduction in federal transfers to the provinces. At the same time, the provinces may if they wish increase their own...

We study corporate income taxation when firms operating in multiple jurisdictions can shift income using tax planning strategies. Because income of corporate groups is not consolidated for tax purposes in Canada, firms may use financial techniques, such as lending among affiliates, to reduce...