When a male employer pays female employee a lower wage (compared with her make counterpart employee) because she may be going on maternity leave sometime in the future, it is a ________.

What is the empirical relationship between income inequality and social mobility across countries? (the answer in the lecture-notes’ slides)

What causes the main local differences in social mobility?

What is the “American dream” as measured by Prof. Raj Chetty?

What generates the difference between pre-tax and post-tax income inequality?

What is the relationship between economic inequalities and economic growth and development?

Which of the following statement is true regarding social mobility of African-Americans’ in the U.S.?

Water has the ability to resist changes in temperature.  Explain why this property of water is important for living things.

Which of the following is an example of an everyday (nonscientific) theory?

Based on previous published data and some preliminary experiments done in my lab, I hypothesize that a drug called “shrinkase” will inhibit the growth of a particular type of cancerous tumor. What is my next step in the scientific process?