Predicting the Currency Market in Online Gaming via Lexicon-Based Analysis on Its Online Forum

Table 3

Statistical significance ( values) of bivariate Granger causality test between WoW token price (NA Region) and concepts of forum opinions.

Time lag	WoW token price
	General	PVP	Raid	Patch	Movie	Leveling	Gear	Number of topics	Number of replies
1 day	0.0116	0.0032	0.0089	0.0074	0.0052	0.0073	0.0034	0.0016	0.0018
2 days	0.0286	0.0059	0.0138	0.0243	0.0144	0.0131	0.0049	0.0073	0.0169
3 days	0.0181	0.0035	0.0081	0.0091	0.0177	0.0075	0.0156	0.0163	0.0252
4 days	0.0494	0.0088	0.0163	0.0315	0.0174	0.0161	0.0332	0.0246	0.0391
5 days	0.0886	0.0138	0.0603	0.0363	0.0657	0.0346	0.0221	0.0286	0.0683
6 days	0.1245	0.0476	0.0813	0.121	0.1109	0.0676	0.0061	0.0341	0.1244
7 days	0.2668	0.1325	0.2188	0.3087	0.2317	0.2106	0.0322	0.0665	0.4006