Columbia subject headings:
Demand functions (Economic theory)--Congresses.
Equilibrium (Economics)--Congresses.
Exchange--Congresses.
Speculation--Congresses.
Harvard subject headings:
Demand functions (Economic theory)--Congresses.
Equilibrium (Economics)--Congresses.
Exchange--Congresses.
Speculation--Congresses.
Princeton subject headings:
Demand functions (Economic theory)--Congresses.
Equilibrium (Economics)--Congresses.
Exchange--Congresses.
Speculation--Congresses.