The signal would be: prices.
When the prices of a certain product is high, it would give signals to the seller to increase the production of that product.
the prices also determine how much material and type of production technique that the sellers can afford to use.
Answer: Not collect tariffs imposed by the federal government.
The Ordinance of Nullification was a law passed by the South Carolina legislature declaring that the Tariffs imposed of 1828 and 1832 were detrimental to the well being of its economy and above all, it was unconstitutional, and thereby null and void.
The tariff of 1824 raised duties from 20-25% to 35% on imported iron, wool, cotton, and hemp. While the Tariff of 1828 increased taxes to nearly 50 %