| Tekijä: | Brown, S. |
| Otsikko: | Use of R2 in accounting research: measuring changes in value relevance over the last four decades |
| Lehti: | Journal of Accounting & Economics
1999 : DEC, VOL. 28:2, p. 83-116 |
| Asiasana: | ACCOUNTING RESEARCH CHANGE |
| Kieli: | eng |
| Tiivistelmä: | Accounting research frequently uses R2, for example, to measure value relevance. The authors show analytically that scale effects present in levels regressions increase R2, and this effect increases in the scale factor's coefficient of variation. Thus, between-sample comparisons of R2 are invalid, unless one controls for differences in the scale factor's coefficient of variation. |
SCIMA