H2a. Company size moderates the impact of SSCM on performance. As shown
in Table.4.19, company size and its interaction term with SSCM (SSCM*Size), were
added to the regression model to assess its moderation of the SSCM-performance
relationship. Although the S, R2, R-sq (adj) and R-sq (pred) were within ranges
comparable to the regression of Performance on SSCM (see Table 4.18), the p-values of
size and SSCM*size of .48 and .25 indicated that they were not statistically significant,
implying that company size does not moderate the impact of SSCM on performance