There's some evidence for this. Chile adopted voluntary voting in 2012. According to this study[0] this decreased the incumbent's advantage in the elections tha

There's some evidence for this. Chile adopted voluntary voting in 2012. According to this study[0] this decreased the incumbent's advantage in the elections that follower. [0] https://www.cambridge.org/core/journals/european-political-science-review/article/incumbency-advantage-and-shocks-in-the-electorate-the-adoption-of-voluntary-voting/485A1D9F6387F30FE806B7B92CE1EF3B https://www.cambridge.org/core/journals/european-political-s...