Dané negesang indik para sujana ring widang ekonomi sadurungé wantah nyelehin indik kawéntenan kasugihan kemanten; sapunapi kasugihan punika kapolihang (produksi), kadistribusiang, miwah kaanggén; miwah sapunapi kasugihan punika prasida nincap.
He affirmed that previous economists have usually centred their studies on the analysis of wealth: how wealth is created (production), distributed, and consumed; and how wealth can grow.