Table 3. Search Strategies Keywords Frequency of Included Studies.
| Keywords | Frequency | Number of References |
| Discrimination | 641 | 26 |
| Bias | 501 | 25 |
| Stereotype | 471 | 20 |
| Status | 246 | 21 |
| Equality | 208 | 23 |
| Judgment | 184 | 12 |
| Social psychology | 157 | 23 |
| Stigma | 138 | 7 |
| Social exclusion | 97 | 2 |
| Prejudice | 88 | 15 |
| Decision-making | 77 | 20 |
| Prosocial | 73 | 5 |
| Fairness | 69 | 17 |
| Heuristic | 38 | 5 |
| Behavioral economics | 36 | 14 |
| Institutions | 35 | 16 |
| Intuition | 29 | 6 |
| Bounded rationality | 1 | 1 |
| Rational choice | 1 | 1 |
| Antisocial | 1 | 1 |
| Impartiality | 1 | 1 |
| Rules of thumb | 0 | 0 |
| Social approval | 0 | 0 |
Note. The criteria to conduct the keyword frequency analysis in software NVivo were searching in all the 26 included studies; in the search for exact phrases, we enclose them in double quotation marks, e.g., “behavioral economics”, and the query included the search of words with the same stem, e.g., search for stigma and find and count stigmatization.