They meant the statistical, not biological term. In this case, the possibility that reducing rents may effect tenancy lengths. https://www.investopedia.com/ter

They meant the statistical, not biological term. In this case, the possibility that reducing rents may effect tenancy lengths. https://www.investopedia.com/terms/e/endogenous-variable.asp https://www.investopedia.com/terms/e/endogenous-variable.asp