6. Conclusion
Asset allocation researchers may want to use inflation-linked bond return data for asset allocation or liability modelling studies. Realized return series on this asset class are relatively short and characterized by a low and stable inflation environment. It is possible to simulate returns on inflation-linked bonds for periods when they did not yet exist. Our empirical results indicate that using the two year ahead inflation forecast of professional forecasters may work better than other methods that have been proposed in the literature, such as those by Kothari and Shanken (2004) or Chen and Terrien (2001). Simulation performance for 19 international bond markets is similar to that on the U.S. market. We make the simulated historical inflation-linked bond series online available. Hence, our results can be used by (asset allocation) researchers. However, we have to caution for using these simulated series as if they were actual data. The uncertainty around the simulation results needs to be taken into account, as the correlation is approximately 0.7 with realized series. Although perhaps better than nothing—it is unfortunately not a close substitute for realized data. Our results also put the claims of existing research that uses simulated inflation-linked bond returns in perspective.