Table 9.

Results of negative binomial regression analysis

Independent variablesBStd. error
(Intercept)−0.0411.1952
Lead paper−0.0490.207
Special issue0.1430.163
Number of authors0.0110.061
Number of keywords−0.0340.050
Article age0.2130.027***
Article length0.0120.019
Number of references0.0100.004***
Title length−0.1300.021***
USA0.2000.138
Quantitative−0.1720.538
Qualitative−0.1470.515
Empirical1.0990.930
LR and conceptual1.0121.053
Hotel and accommodation−0.0090.297
Food and beverage−0.5080.324
Tourism−0.0320.314
Travel and leisure−0.2860.297
Restaurants−0.1610.344
(Scale)1a
(Negative binomial)1a
N291
AIC1,962.339
Log likelihood−962.169

Note:

***p < 0.01

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