Matched vs Unmatched Observations by Group
	Total	Matched	Matched (%)	Unmatched	Unmatched (%)
Control (Non‐Green)	132	43	33	89	67
Treated (Green)	44	43	98	1	2
Note: Exact 1:1 matching on Mahalanobis distance with exact country matching. Original sample had N treated = 44, N control = 132.