**Main results (logit regression with robust standard errors clustered by country)**

	(1)	(2)	(3)	(4)	(5)	(6)

tna_access	0.63^* (0.05)
intensity		0.35^* (0.03)
range No TNA access				0.74 (0.43)
range Medium			0.88 (0.55)	1.37^* (0.43)
range Full			0.99 (0.56)	1.69^* (0.54)
depth No TNA access					-0.69 (0.43)
depth Observe			-0.49 (0.48)		0.05 (0.43)
depth Speak			-0.56 (0.49)		-0.30 (0.43)
permanence No TNA access						0.26 (0.14)
permanence Adhoc			0.55^* (0.23)			0.87^* (0.17)
permanence Conditional			0.77^* (0.25)			1.22^* (0.15)
subject_energy	0.31^* (0.08)	0.31^* (0.08)	-3.48^* (0.58)	0.31^* (0.08)	0.30^* (0.08)	0.30^* (0.08)
subject_freshwater	-0.29^* (0.13)	-0.31^* (0.13)	-13.39^* (0.20)	-0.29^* (0.13)	-0.28^* (0.13)	-0.30^* (0.12)
subject_habitat	0.40^* (0.07)	0.48^* (0.07)	0.08 (0.13)	0.40^* (0.08)	0.35^* (0.08)	0.45^* (0.08)
subject_nature	0.24^* (0.06)	0.20^* (0.06)	0.15 (0.13)	0.24^* (0.06)	0.25^* (0.06)	0.20^* (0.06)
subject_ocean	-0.53^* (0.06)	-0.57^* (0.06)	-1.22^* (0.14)	-0.54^* (0.06)	-0.51^* (0.06)	-0.57^* (0.07)
subject_pollution	0.77^* (0.07)	0.80^* (0.07)	0.43^* (0.17)	0.76^* (0.07)	0.77^* (0.07)	0.80^* (0.07)
subject_species	0.16^* (0.04)	0.14^* (0.05)	0.20 (0.12)	0.15^* (0.05)	0.15^* (0.05)	0.14^* (0.05)
subject_weapons	0.54^* (0.12)	0.57^* (0.12)		0.54^* (0.12)	0.49^* (0.12)	0.55^* (0.12)
obligations	-0.11^* (0.04)	-0.12^* (0.04)	0.002 (0.13)	-0.12^* (0.04)	-0.13^* (0.04)	-0.15^* (0.04)
mon_and_enf	0.08^* (0.04)	0.11^* (0.04)	0.12 (0.12)	0.08^* (0.04)	0.10^* (0.04)	0.13^* (0.04)
dispute_settlement	0.22^* (0.04)	0.20^* (0.04)	0.42^* (0.12)	0.21^* (0.04)	0.21^* (0.04)	0.18^* (0.04)
assistance_all	0.45^* (0.06)	0.47^* (0.06)	0.38^* (0.09)	0.47^* (0.06)	0.47^* (0.06)	0.48^* (0.06)
assistance_developing	1.08^* (0.07)	1.15^* (0.07)	1.43^* (0.12)	1.09^* (0.07)	1.03^* (0.07)	1.09^* (0.07)
public_good_global	-0.52^* (0.06)	-0.51^* (0.06)	-0.27^* (0.08)	-0.51^* (0.06)	-0.55^* (0.06)	-0.53^* (0.06)
public_good_mixed	-0.74^* (0.06)	-0.83^* (0.07)	-0.40^* (0.17)	-0.73^* (0.06)	-0.69^* (0.06)	-0.80^* (0.07)
trade_openness	0.04 (0.06)	0.04 (0.06)	0.03 (0.06)	0.04 (0.06)	0.05 (0.06)	0.04 (0.06)
igo_membership_count	0.02^* (0.004)	0.02^* (0.004)	0.03^* (0.004)	0.02^* (0.004)	0.02^* (0.004)	0.02^* (0.004)
polity	0.03^* (0.01)	0.03^* (0.01)	0.03^* (0.01)	0.03^* (0.01)	0.03^* (0.01)	0.03^* (0.01)
gdppc	0.12^* (0.04)	0.12^* (0.04)	-0.05 (0.05)	0.12^* (0.04)	0.13^* (0.04)	0.12^* (0.04)
gdppc_squared	-0.05^* (0.02)	-0.05^* (0.02)	-0.04 (0.03)	-0.05^* (0.02)	-0.05^* (0.02)	-0.05^* (0.02)
gdp	0.04 (0.04)	0.04 (0.04)	0.01 (0.04)	0.04 (0.04)	0.04 (0.04)	0.04 (0.04)
legislative_approval	0.10 (0.11)	0.10 (0.11)	-0.08 (0.10)	0.10 (0.11)	0.10 (0.11)	0.10 (0.11)
ratification_global	0.04^* (0.002)	0.04^* (0.002)	0.04^* (0.002)	0.04^* (0.002)	0.04^* (0.002)	0.04^* (0.002)
ratification_in_region	0.02^* (0.002)	0.02^* (0.002)	0.01^* (0.002)	0.02^* (0.002)	0.02^* (0.002)	0.02^* (0.002)
t1	-0.24^* (0.02)	-0.25^* (0.02)	-0.15 (0.10)	-0.24^* (0.02)	-0.24^* (0.02)	-0.24^* (0.02)
t2	0.01^* (0.001)	0.01^* (0.001)	0.004 (0.003)	0.01^* (0.001)	0.01^* (0.001)	0.01^* (0.001)
t3	-0.0001^* (0.0000)	-0.0001^* (0.0000)	-0.0000^* (0.0000)	-0.0001^* (0.0000)	-0.0001^* (0.0000)	-0.0001^* (0.0000)
Constant	-3.09^* (0.29)	-3.00^* (0.28)	-4.32^* (1.49)	-3.81^* (0.56)	-2.38^* (0.53)	-3.23^* (0.33)

Treaties	178	178	42	178	178	178
Countries	154	154	154	154	154	154
Years	62	62	49	62	62	62
Observations	612,429	612,429	94,656	612,429	612,429	612,429
Log Likelihood	-24,805.99	-24,791.33	-7,166.33	-24,797.80	-24,792.52	-24,777.56

Note:	*p<0.05
	Model (3) excludes treaties not granting any TNA access.
	Models (3) to (6) use 'Unspecified' as baseline category for range, depth, and permanence.
	We did not observe treaties with a range coded as 'small', a depth coded as 'Vote', nor a permanence coded as 'permanent'.