5. You want to estimate the effect of graduating from high school on labor earnings at age 30. Choose 2 methods from Regression Discontinuity, Difference-in-Differences, Instrumental Variables, or Randomized Controlled Trials, and explain (in 2-3 sentences each) how you could design a hypothetical study using that method. (Note: the study doesn't have to be feasible in reality, it simply needs to generate a consistent estimate if the study were done) 5. You want to estimate the effect of graduating from high school on labor earnings at age 30. Choose 2 methods from Regression Discontinuity, Difference-in-Differences, Instrumental Variables, or Randomized Controlled Trials, and explain (in 2-3 sentences each) how you could design a hypothetical study using that method. (Note: the study doesn't have to be feasible in reality, it simply needs to generate a consistent estimate if the study were done)