Lack of data constrains tax perk analysis.

Registration forms and other documents submitted by companies to the Board of Investments (BoI) are wanting in vital data needed in an ongoing cost-benefit analysis focused on the grant of tax perks to investors.

This has constrained the agency's analysis, preliminary and inconclusive findings of which show negative net foreign exchange flows in the last 10 years, a BusinessWorld source said in a telephone interview.

Firms that avail of BoI incentives such as income tax holidays (ITH) are obliged to submit regular reports to the agency, but "many of these submissions are incomplete or not properly filled out," the source said.

It would have been …