The starting point for understanding consumer behavior is the model in which marketing and environmental stimuli enter the consumer's consciousness, and a set of psychological processes combine with certain consumer characteristics to result in decision processes and purchase decisions.

The green revolution is a scientific breakthrough that improved seeds for basic crops. how did the green revolution impact the supply of basic crops such as wheat and corn? the supply of wheat and corn increased. there was no impact on the supply of basic crops. the supply of basic crops did not change, but the quantity supplied of basic crops increased. the supply of wheat and corn decreased.