Josiah Checks His Text Messages Quite Often Throughout the Day

question 111

Multiple Choice

Josiah checks his text messages quite often throughout the day.Some days there is a text each time he checks; sometimes several hours go by with no new messages arriving.How is Josiah's behaviour of checking his messages being reinforced in this example

• A) on a fixed-ratio schedule 
• B) on a variable-interval schedule 
• C) on a variable-ratio schedule 
• D) on a fixed-interval schedule

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Definitions:

Long Run

A period sufficient for all inputs to production, including capital, to be varied.

Long Run

A period of time sufficient for all markets to adjust to changes, including the reallocation of resources and entrance or exit of firms in an industry.

Perfectly Competitive Industries

Markets where no single buyer or seller has the power to influence prices, and where products are homogeneous and information is freely available.

Easily Enter And Exit

A term used to describe a market condition where barriers to entry and exit are low, allowing for free movement of firms into and out of the industry.