\Artiga González\, T., \van Lelyveld\, I. and Lučivjanská, K. (2020). Pension fund equity performance: Patience, activity or both? Journal of Banking and Finance, 115:1--16.

We study how pension fund (out)performance is influenced by a) a pension fund's activity, i.e., how much the pension fund deviates in its stock allocation from typical pension fund behavior, and b) whether the pension fund is patient in exploiting investment opportunities (measured by stock holding duration). We do not find that high activity or higher holding duration, separately, lead to higher risk adjusted returns on average. However, if high activity is paired with long-term holdings, the pension fund's performance increases. Quantitatively, if an active pension fund increases its duration by one standard deviation, annual returns tend to increase by 2.3%. Our findings indicate that some pension funds are patient enough to exploit long-term investment opportunities.