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Game theory: How it applies to marriage, kidney donation chains and government gridlock. 
As you watch this video, note how behavioral economist Colin Camerer discusses how a popular mathematical theory, Game theory, applies in decision making in all sectors of life; from making decisions regarding marriage to making decisions regarding organ donation. Consider how a researcher studying relationships might apply this theory in their research.

Theoretical Framework 
In this short video, Francois Desjardin provides a short introduction to theoretical frameworks and how to approach constructing one.