| 营销相关因素 | 参考文献 | 使用频数 |
| Rewards Giving | [72] | 1 |
| Badges Upgrading | [43] | 1 |
| Sales Promotion | [10] [25] [34] [73] | 4 |
| Advertisements | [23] | 1 |
| Promotional Campaigns | [44] | 1 |
| Celebrity Endorser | [4] | 1 |
| Aesthetic Appeal | [22] | 1 |
| Vicarious Expression | [15] | 1 |
| Immediate Promotion | [74] | 1 |
| Delayed Promotion | [74] | 1 |