# **B.2 Using an Alternative Measure of Catchment Area**

So far, our baseline analysis relies on a 2.5km buffer around the location of coffee mills in identifying treated and control communities. In this section, we relax this strict definition of the catchment area using a 5km radius from a coffee mill and replicate the baseline analysis. Results are shown in Tables A3 - A7 Table A3: Early Life Exposure to Coffee Mills and Test Scores

|||All Subjects|||STEM|||Non STEM||
|---|---|---|---|---|---|---|---|---|---|
||(1)|(2)|(3)|(4)|(5)|(6)|(7)|(8)|(9)|
|||||A. Standa|rdized Grad|e Points||||
|CatchmentArea X Post|0.0492***|0.0522***|0.0487***|0.0353**|0.0372**|0.0337**|0.0540***|0.0571***|0.0537***|
||(0.0178)|(0.0171)|(0.0169)|(0.0159)|(0.0161)|(0.0159)|(0.0187)|(0.0180)|(0.0176)|
||[ 0.015 ]|[ 0.013 ]|[ 0.014 ]|[ 0.042 ]|[ 0.035 ]|[ 0.047 ]|[ 0.014 ]|[ 0.013 ]|[ 0.013 ]|
|R-squared|0.3866|0.4260|0.4260|0.3796|0.4152|0.4152|0.3609|0.4030|0.4030|
|||||B. Grade Po|ints (unsta|ndardized)||||
|CatchmentArea X Post|0.4057***|0.3944***|0.3633***|0.1482***|0.1140**|0.1019**|0.2576***|0.2804***|0.2614***|
||(0.1358)|(0.1313)|(0.1291)|(0.0475)|(0.0476)|(0.0471)|(0.0920)|(0.0888)|(0.0871)|
||[ 0.013 ]|[ 0.013 ]|[ 0.014 ]|[ 0.013 ]|[ 0.031 ]|[ 0.045 ]|[ 0.014 ]|[ 0.013 ]|[ 0.013 ]|
|Mean dep var|15.4019|15.4015|15.4015|4.8608|4.8607|4.8607|10.5410|10.5408|10.5408|
|R-squared|0.4085|0.4477|0.4478|0.4092|0.4451|0.4451|0.3768|0.4189|0.4189|
|Controls|Yes|Yes|Yes|Yes|Yes|Yes|Yes|Yes|Yes|
|School FE|Yes|Yes|Yes|Yes|Yes|Yes|Yes|Yes|Yes|
|Exam Year FE|Yes|No|No|Yes|No|No|Yes|No|No|
|YOB FE|Yes|No|No|Yes|No|No|Yes|No|No|
|Municipality X Exam Year FE|No|Yes|Yes|No|Yes|Yes|No|Yes|Yes|
|Municipality X YOB FE|No|Yes|Yes|No|Yes|Yes|No|Yes|Yes|
|CatchmentArea X Exam Year FE|No|No|Yes|No|No|Yes|No|No|Yes|
|R-squared|0.3866|0.4260|0.4260|0.3796|0.4152|0.4152|0.3609|0.4030|0.4030|
|Observations|1487355|1487036|1487036|1487358|1487039|1487039|1487354|1487035|1487035|

Notes: In panel A, the dependent variable is the standardized aggregate grade points in all subjects in the Rwanda Primary School National exam. The dependent variable in panel B is the (unstandardized) aggregate grade points in all subjects. STEM subjects include Math and Science while Non STEM courses include English, Social Studies, and Kinyarwanda. CatchmentArea X Post is an indicator variable equal to 1 if a student was born within the vicinity ( _≤_ 5km) of an operational coffee mill and 0 if otherwise. Controls include gender of the student, average annual temperature and precipitation in the exam year, as well as baseline controls such as coffee suitability and road density interacted with time trend. Robust standard errors clustered at school level in parenthesis. False discovery rate (FDR) adjusted p-values for _Catchment AreaX Post_ are reported in square brackets (Anderson 2008). The outcome variables accounted for in the p-values adjustments include the standardized test scores of: All subjects (aggregate), STEM, and Non-STEM subjects, as well as the subject-specific test scores i.e., Maths, Science, Social, English, and Kinyarwanda.

> _∗_ Significant at 10 percent level _∗∗_ Significant at 5 percent level _∗∗∗_ Significant at 1 percent level

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