Figure 2.

Most effects are small: Dynamics of the allele frequency for locus with effect ${\gamma }_i=0.121$ (main) and ${\gamma }_i=0.024$ (inset). All the parameters are the same as in Figure 1. Note that while the initial allele frequency in the inset is closely approximated by (8), the allele trajectory starts at a value much lower than one half in the main panel as the effect size is close to $\widehat{\gamma }\approx \mathrm{0.126.}$ In the latter case, the corrections to (8) are substantial and given by (B2) of de Vladar and Barton (2014).