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Which of the following instruments is capable of simultaneously playing both melody and harmony?

Say’s Law argues that a given ____________________ must create an equivalent ________________________ somewhere else in the economy.

Explain an example of variations in environmental conditions over space and time that allow for species co-existence.

Ranger Captain Woodrow F. Call, knowing there’s always a lesson to be learned, asks the ranch hands, “Which of the following statements is true?”

In a statement of almost unprecedented clarity, Roscoe Brown says, “In macroeconomics, _______________ is the name that is given to the costs of changing prices that businesses must consider.”

Woodrow Call, who enjoys a good philosophical discussion, ponders, “Which of the following is true?”

The “Hat Creek Cattle Company” wonders if when their products are sold, they are included in GDP.  They do some research and find that GDP is:

In a Keynesian cross (AS/AD) diagram, what name is given to the distance between an output level that is below potential GDP and the level of potential GDP?

__________is output counted two or more times as it travels through the stages of production. This is a danger that could overstate the size of the economy considerably.

For the neo-classical economist, why is productivity growth considered to be the most important factor in the AD/AS model?