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Briefly discuss mechanical observation.What is it and why is it used? Describe two devices used for mechanical observation that do not require the respondent's direct participation.
Short Run Aggregate Supply
The total supply of goods and services that businesses in an economy plan on selling during a short time period, assuming that the prices of resources do not change.
Price Level
A mean value of present prices for all goods and services in the economy, indicating the level of inflation or deflation.
Quantity of Output
The total amount of a particular good or service that is produced by a firm or economy.
Long-Run Equilibrium
A state in which all factors of production and costs are variable, and firms in the market are making zero economic profit, indicating no incentive for entry or exit from the market.
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Q64: _ result when the researcher is unable
Q98: Pretests are best done by personal interviews,