Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Leading publishers
| Publishers | Number of publications |
|---|---|
| Elsevier | 44 |
| Emerald Group Publishing | 36 |
| Wiley | 17 |
| Taylor & Francis | 15 |
| Springer Nature | 10 |
| IEEE | 9 |
| Amer Accounting Assoc | 8 |
| MDPI | 6 |
| Asce-Amer Soc Civil Engineers | 4 |
| Acad Conferences Ltd | 3 |
Leading research areas
| Research areas | Number of publications |
|---|---|
| Business Economics | 152 |
| Engineering | 55 |
| Operations Research Management Science | 24 |
| Computer Science | 19 |
| Information Science Library Science | 11 |
| Environmental Sciences Ecology | 9 |
| Construction Building Technology | 6 |
| Science Technology Other Topics | 6 |
| Social Sciences Other Topics | 6 |
| Public Administration | 4 |