This document summarizes the Philippine experience in measuring Gross Regional Domestic Product (GRDP). It discusses the compilation process for GRDP by industrial origin using a top-down approach. It also describes the sources of data, estimation methodologies, development efforts made, and issues faced in GRDP measurement. Current improvements include revising the 1998-2009 series and shifting the base year to 2000 and eventually 2006. Next steps include compiling city/provincial product accounts and providing more training.