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. Author manuscript; available in PMC: 2017 Oct 1.
Published in final edited form as: Tob Regul Sci. 2016 Oct;2(4):329–342. doi: 10.18001/TRS.2.4.5

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.