Which of the Following Are Important Technological Innovations of the Song

question 47

Multiple Choice

Which of the following are important technological innovations of the Song Empire?

• A) The stern-mounted rudder, high-quality steel, and gunpowder
• B) Silk, the saddle, and the printing press
• C) The battering ram, the chariot, and the lateen sail
• D) The astrolabe, the horse collar, and the crossbow
• E) The clock, paper, and the cure for the plague

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Definitions:

Impossibility Theorem

A proposition demonstrated by Kenneth Arrow showing that no system of aggregating individual preferences into social decisions will always yield consistent, nonarbitrary results.

Voting Paradox

A simple demonstration of how majority-rule voting can lead to seemingly contradictory and inconsistent results. A commonly cited illustration of the kind of inconsistency described in the impossibility theorem.

Social Choice

The problem of deciding what society wants. The process of adding up individual preferences to make a choice for society as a whole.

Estate

The property that a person owns at the time of his or her death.