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Excess individual creativity can be detrimental to society because creatorsinvest in unproven ideas at the expense of propagating proven ones. Moreover, aproportion of individuals can benefit from creativity without being creativethemselves by copying creators. We hypothesized that (1) societies increasetheir rate of cultural evolution by tempering the novelty-generating effects ofcreativity with the novelty-preserving effects of imitation, and (2) this iscarried out by selectively rewarding and punishing creativity according to thevalue of the individuals' creative outputs. We tested this using an agent-basedmodel of cultural evolution in which each agent self-regulated itsinvention-to-imitation ratio as a function of the fitness of its culturaloutputs. In self-regulating societies, agents segregated into creators andimitators. The mean fitness of cultural outputs was higher than innon-self-regulating societies, and changes in diversity were rapider and morepronounced. We discuss limitations and possible social implications of ourfindings.

Computational Evidence that Self-regulation of Creativity is Good for Society