Columbia subject headings:
Harvard subject headings:
Circular velocity of money
Circular velocity of money--Congresses.
Foreign exchange
Foreign exchange--Congresses
Industrial productivity
Industrial productivity--Congresses
Quantity theory of money
Quantity theory of money--Congresses.
Unemployment
Unemployment--Congresses
Princeton subject headings:
Foreign exchange--Congresses.
Industrial productivity--Congresses.
Quantity theory of money--Congresses.
Unemployment--Congresses.