For Economists,substitutes for Laboratory Experiments Often Come in the Form

question 207

Multiple Choice

For economists,substitutes for laboratory experiments often come in the form of

• A)natural experiments offered by history.
• B)untested theories.
• C)"rules of thumb" and other such conveniences.
• D)reliance upon the wisdom of elders in the economics profession.

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Definitions:

Sporophyte

The diploid phase in the life cycle of plants and algae that produces spores through meiosis, which in turn develop into the gametophyte generation.

Evolutionary Trend

A general direction of adaptive changes or evolutionary developments in a group over time.

Mesozoic Era

A geological era occurring between 252 to 66 million years ago, known as the age of reptiles, including dinosaurs.

Cycads

Ancient group of seed plants with a palm-like appearance, found in tropical and subtropical regions.