Data Files Used in 16-causal.qmd
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The following data files are used in the lecture notes for Lecture 16: Causal Inference:

1. Oregon Health Insurance Experiment (OHIE) data:
   - oregon_data/oregonhie_descriptive_vars.dta
   - oregon_data/oregonhie_stateprograms_vars.dta
   - oregon_data/oregonhie_survey12m_vars.dta
   Location in document: Lines 502-504
   Purpose: Study the causal effect of health insurance eligibility on primary care usage

2. Abortion and Crime data:
   - abortion.dat
   Location in document: Line 963
   Purpose: Examine the relationship between abortion rates and crime rates (Donohue & Levitt, 2001)

3. US Cell Phone Usage data:
   - us_cellphone.csv
   Location in document: Line 1097
   Purpose: Placebo test for abortion and crime analysis

4. National Supported Work (NSW) Demonstration data:
   - dw_experimental_data.csv
   Location in document: Line 1534
   Purpose: Study the causal effect of job training program on wages using propensity score weighting and causal trees

