In our Unitary System the bulk of the taxes (those coming from personal and corporate income and value added taxes) are collected by the Top and then transferred to the local areas. Most through relatively unaccountable and non-transparent avenues. Provinces are dependent to the extent of 80% on these transfers from the National government. The Local Government Code of 1991 mandates a 40% share of the LGUs in the national taxes and spread on the basis of population, area and equalization parameters but another large chunk goes through Regional Line Offices with legislators and pet officials having discretion on Project implementation.
A Federal system may work better if it allows the Regions/States to directly collect these taxes, retain its share based on the income and consumption of its Regional citizens, and remit to the National Government its share for services coming from the National Government that benefit the Region/State.
The former is trickle down or "pinatulo" while the latter is Bottom Up or "pinatubo"
