Table 1.

Exponential demand curve parameters for individual subjects

Subject	α	Q0	Pmax	Omax	r2
Nicotine
1	0.00024	3.6	391.7	429.0	0.95
2	0.00010	5.4	646.2	1061.4	0.98
3	0.00036	3.0	313.4	286.0	0.97
4	0.00068	3.6	138.3	151.4	0.97
5	0.00027	3.7	338.8	381.3	1.00
6	0.00014	2.3	1051.1	735.4	0.87
7	0.00015	2.5	902.6	686.4	0.97
8	0.00037	2.3	397.7	278.3	0.96
9	0.00052	2.0	325.4	198.0	0.90
10	0.00130	1.1	236.7	79.2	0.94
Mean	0.00041	2.9	474.2	428.6	0.95
SEM	0.00011	0.4	93.9	97.7	0.01
Snus
1	0.00020	3.2	528.8	514.8	0.91
2	0.00110	0.76	404.9	93.6	0.71
3	0.00019	3.5	509.0	541.9	0.97
4	0.00047	1.8	400.1	219.1	0.91
5	0.00033	3.7	277.2	312.0	0.98
6	0.00310	4.1	26.6	33.2	0.93
7	0.00020	2.8	604.4	514.8	0.96
8	0.00038	2.7	329.9	270.9	0.84
9	0.00052	3.9	166.9	198.0	0.97
10	0.00047	4.9	147.0	219.1	0.96
Mean	0.00070	3.1	339.5	291.7	0.91
SEM	0.00028	0.4	58.8	56.6	0.03
Kodiak
1	0.00041	2.3	358.9	251.1	0.91
2	0.00018	4.3	437.3	572.0	0.95
3	0.00018	3.6	522.3	572.0	0.97
4	0.00028	4.2	287.8	367.7	0.98
5	0.00096	8.0	44.10	107.2	0.97
6	0.00059	6.1	94.04	174.5	0.97
7	0.00035	2.3	420.4	294.2	0.95
8	0.00130	3.7	70.4	79.2	0.94
9	0.00067	4.0	126.3	153.7	0.83
10	0.00180	3.0	62.7	57.2	0.88
Mean	0.00067	4.2	242.4	262.9	0.94
SEM	0.00017	0.6	57.8	59.9	0.02

Note. The parameter k set to 1.8 log units globally.