Columbia subject headings:
Consumption (Economics)--Mathematical models.
Durable goods, Consumer.
Liquidity (Economics)
Supply and demand--Mathematical models.
Harvard subject headings:
Consumption (Economics)--Mathematical models
Durable goods, Consumer.
Liquidity (Economics)
Supply and demand--Mathematical models
Princeton subject headings:
Durable goods, Consumer.
Liquidity (Economics)
Monetary policy.