Solve it plz

1. Why do we use the real domestic gross to determine which film had the highest revenue in history? 2. Can the real interest rate of a treasury bond be negative even if the nom- inal interest rate is positive? Give a historical example. 3. Explain what is constant return to scale of a firm's production function. What is the productivity of a large firm compared with a small firm, if both have the same production function of constant return to scale? 4. What happens if the government spends more than it receives? Explain in your own words. 5. How does the utility function explain risk aversion? Consider the example of a fair bet