An econometric “verification” of historical accounts of Philippine international trade and economic liberalization during the 19th century using econometric analysis to correlate historical accounts from official and other historical sources from Spanish era of Filipinas (majority of Luzon and Visayas trading centers). This paper also aims to assess macroeconomic trends and institutional analyses of Philippine colonial trade of the 19th century (with consequences to the 20th century Philippine economic development experience) using the perspective of econometric methodology.