Table 1 Descriptive statistics and correlations among variables.

(a) Award, sequel, timing of release
	Class	Count	Percent of count
Award	Yes	1764	98.1
	No	34	1.9
Sequel	Yes	1766	98.2
	No	32	1.8
Timing of release	Yes	1106	61.5
	No	692	38.5
	Maximum	Mean	Standard deviation
Actor power	2551.25 million (dollars)	103.41	224.51

(b) Mean sales of box office in each genre (dollars)
Genre	Mean	N	Percent
Drama	2.39 million	823	45.8
Comedy	3.08 million	219	12.2
Melodrama/romance	1.89 million	197	11
Action	5.71 million	123	6.8
Animation	2.12 million	118	6.6
Documentary	0.27 million	116	6.5
Horror	1.35 million	73	4.1
Thriller, mystery	3.13 million	67	3.7
Crime	6.11 million	26	1.4
Science Fiction	15.76 million	11	0.6
Art	3.89 million	7	0.4
Family	0.92 million	7	0.4
Fantasy	9.22 million	5	0.3
History	14.70 million	3	0.2
Unclassified	3.99 million	2	0.1
War	11.57 million	1	0.1
Total		1798	100.0

(d) eWOM
	N	Minimum	Maximum	Mean	Std. deviation
Average number of reviews at prerelease	1798	1.00	84371.00	1437.2625	4101.75947
Average number of reviews at week 1	1776	1.00	9834.00	120.3170	370.18362
Average number of reviews at week 2	1680	1.00	3810.00	44.4970	128.19458
Average review rating at prerelease	1798	1.00	10.00	7.3482	1.42108
Average review rating at week 1	1776	1.00	10.00	7.9141	1.50521
Average review rating at week 2	1680	0.00	10.00	8.2851	1.57850
Average review extremity at prerelease	1798	1.06	6.93	2.4715	0.90184
Average review extremity at week 1	1776	0.07	6.93	2.4260	0.89608
Average review extremity at week 2	1680	0.07	7.93	2.3210	0.94080
Average length of a review in words at prerelease	1798	5.33	39.38	19.9016	5.61789
Average length of a review in words at week 1	1749	2.00	62.00	18.4766	6.65295
Average length of a review in words at week 2	1344	2.00	72.00	17.1065	6.81981
Average number of emotional reviews at prerelease	1790	1.00	4.55	2.3780	0.53974
Average number of emotional reviews at week 1	1720	1.00	10.00	2.2145	0.74633
Average number of emotional reviews at week 2	1294	1.00	6.50	2.0949	0.73655
Average number of positive reviews at prerelease	1790	0.25	2.70	1.2319	0.32712
Average number of positive reviews at week 1	1720	0.00	8.00	1.2342	0.51221
Average number of positive reviews at week 2	1294	0.00	4.29	1.2092	0.54656
Helpfulness of review at prerelease	1786	0.00	1.00	0.5890	0.19312
Helpfulness of review at week 1	945	0.00	1.00	0.5725	0.29752
Helpfulness of review at week 2	673	0.00	1.00	0.6190	0.33551
Helpfulness of reviewer	1783	0.17	1.00	0.5559	0.06263

(e) Box office revenue
	N	Minimum	Maximum	Mean	Std. deviation
Box office revenue at the opening day	1798	0.00	4.09 million (dollars)	0.13 million	0.30 million
Box office revenue at week 1	1798	14	28.27	1.13	2.68
Box office revenue at week 2	1750	14	28.60	0.72	2.23
Box office revenue at week 3	1591	0.00	25.89	0.43	1.66

(f) Correlation among eWOM at prerelease
	Average number of reviews at prerelease	Average review rating at prerelease	Average review extremity at prerelease	Average length of a review in words at prerelease	Average number of emotional reviews at prerelease	Average number of positive reviews at prerelease	Helpfulness of review at prerelease	Helpfulness of reviewer
Average number of reviews at prerelease	1	0.131(**)	−0.003	−0.061(*)	−0.034	0.003	−0.018	0.013
Average review rating at prerelease	0.131(**)	1	−0.891(**)	0.021	−0.017	0.179(**)	0.170(**)	0.134(**)
Average review extremity at prerelease	−0.003	−0.891(**)	1	−0.071(**)	−0.010	−0.203(**)	−0.168(**)	−0.127(**)
Average length of a review in words at prerelease	−0.061(*)	0.021	−0.071(**)	1	0.904(**)	0.727(**)	0.094(**)	0.313(**)
Average number of emotional reviews at prerelease	−0.034	−0.017	−0.010	0.904(**)	1	0.812(**)	0.069(**)	0.290(**)
Average number of positive reviews at prerelease	0.003	0.179(**)	−0.203(**)	0.727(**)	0.812(**)	1	0.094(**)	0.285(**)
Helpfulness of review at prerelease	−0.018	0.170(**)	−0.168(**)	0.094(**)	0.069(**)	0.094(**)	1	0.275(**)
Helpfulness of reviewer	0.013	0.134(**)	−0.127(**)	0.313(**)	0.290(**)	0.285(**)	0.275(**)	1

Search