RT @instrumenthull: Paul asked a good question about the difference between a "natural experiment" and "quasi-experiment." Upping my/@borus…
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RT @instrumenthull: @PHuenermund DiNardo (2008) defines a natural experiment as a "serendipitous randomized trial" (https://t.co/cpVV4uv5pR…
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RT @instrumenthull: @PHuenermund DiNardo (2008) defines a natural experiment as a "serendipitous randomized trial" (https://t.co/cpVV4uv5pR…
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RT @instrumenthull: @PHuenermund DiNardo (2008) defines a natural experiment as a "serendipitous randomized trial" (https://t.co/cpVV4uv5pR…