There is also empirical evidence that financial globalisation has been associated with increases in income inequality within individual countries.4 OECD data show that the labour compensation of the bottom 99% of earners, measured as a fraction of national income, has declined over the last 20 years in rich countries, while the labour compensation of the top 1%, measured as a fraction of national income, has increased by 20%.5 Likewise, global integration has made it easier for companies and individuals to avoid taxation by exploiting international loopholes.
Documentary evidence includes the system of legalised measurements, land classification and crop yields by season, etc. The system of land tenure and land revenue, followed during the Moghul period, had enough empirical basis. The statistical system was strengthened during the British period.