Which of the following research topics/questions are good in terms of being focused and specific? 1. Labor markets. 2. Evaluating the impact of COVID-19 pandemic on hotel industry. 3. Chinese economy 4. Quantifying the impact of government corruption on firm's productivity in China. 5. What is the impact of raising the minimum wage on employment of low- skilled workers? 6. Estimating racial bias in police use of force 7. Estimating racial bias in housing finance. 8. Estimating union membership impact on race earnings gaps. 9. Are minorities more likely to be unionized workers? 10. What's up with cryptocurrency? 11. What is going on