1-A branch of mathematics that studies strategic interactions (meaning situations in which each actor knows that the benefits they receive depend on the actions taken by all) is called:

A-econometrics

B-social interactions

C-game theory

2-Institutionsare the "rules of the game". Which are examples of formal institutions? Select all that apply.

A-property rights

B-corruption

C-labor laws

D-gender roles

3-Which are examples of informal institutions? Select all that apply.

A-contract enforcement

B-altruism

C-cooperation

D-laws