Variable (order quantity)

Model(1)

Mode (2)

Logit regression coefficient

Intercept

3.286** (1.006)

2.498* (1.266)

Duration

0.013*** (0.004)

0.013*** (0.004)

Promotion strategies (reward-type promotion)

−0.219 (0.225)

0.609 (0.813)

Promotion intensity

8.680 (8.489)

Promotion intensity × Reward-type promotion

−9.075 (8.583)

Distributor’s scale (natural logarithm)

−0.149* (0.059)

−0.149* (0.059)

Time

control

control

Region

control

control

Negative binomial regression coefficient

Intercept

5.822*** (1.000)

3.607** (1.273)

Duration

0.021*** (0.002)

0.020*** (0.002)

Promotion strategies (reward-type promotion)

−0.513** (0.170)

1.849* (0.874)

Promotion intensity

20.347* (8.856)

Promotion intensity × Reward-type promotion

−22.764* (8.961)

Distributor’s scale (natural logarithm)

−0.116* (0.055)

−0.103 (0.055)

Time

control

control

Region

control

control

Log (Measures of Dispersion)

−0.434*** (0.076)

−0.409*** (0.075)

Log-likelihood

−3962

−3956

Sample size

1803

1803