What is the difference between 'Ser' and 'Estar", as they both mean 'to be?"

Ser: Description, Occupation, Characteristic, Time, Origin Estar: Position, Location, Condition, Emotion

What is the difference between behaviorism and cognitivism?

Behaviorism based on the idea that behavior comes from external stimuli, congnitivism is based on the idea that behavior comes from internal mental processes.

What is the difference between elastic and inelastic demand?

Elasticity measures how much a product's demand changes as the price of it changes. An elastic demand (over 1) means that the more the price changes, the more the demand changes. Inelastic demand (less than 1) means that as the price changes the demand is more resistant to change.