Why the Fed model could or could not be relevant?
The rationale underlying the Fed model has been discussed in the academic literature for the last five years. For example, Lander, Orphanides, and Douvogiannis (1997), Asness (2003) or Campbell and Vuolteenaho (2004) point out that this model does have some merit, although they mostly disagree on how the model should be interpreted. First, portfolio managers do arbitrage the equity and bond markets and carry trades are much used. As equities and bonds are competing assets, it is obvious that fund managers want to invest in the highest yielding asset (taking into account the risk). Secondly, this model is broadly speaking in agreement with the principle of the discounted present value of future cash flows. Thirdly, the recent empirical evidence supports the rationale of the Fed model, and more precisely the fact that the equity yield has somewhat tracked the government bond yield over the last thirty years.6 As indicated in Campbell and Vuolteenaho (2004), “the Fed model has been quite successful as an empirical description of stock prices. Most notably, the model describes the rise in stock yields, along with inflation, during the 1970’s and early 1980’s, and the decline in stock yields during the past 20 years”. Fourthly, it paves the way for a time-varying stock market risk premium, which is an enhancement of classical Gordon type models.
Why the Fed model could or could not be relevant?The rationale underlying the Fed model has been discussed in the academic literature for the last five years. For example, Lander, Orphanides, and Douvogiannis (1997), Asness (2003) or Campbell and Vuolteenaho (2004) point out that this model does have some merit, although they mostly disagree on how the model should be interpreted. First, portfolio managers do arbitrage the equity and bond markets and carry trades are much used. As equities and bonds are competing assets, it is obvious that fund managers want to invest in the highest yielding asset (taking into account the risk). Secondly, this model is broadly speaking in agreement with the principle of the discounted present value of future cash flows. Thirdly, the recent empirical evidence supports the rationale of the Fed model, and more precisely the fact that the equity yield has somewhat tracked the government bond yield over the last thirty years.6 As indicated in Campbell and Vuolteenaho (2004), “the Fed model has been quite successful as an empirical description of stock prices. Most notably, the model describes the rise in stock yields, along with inflation, during the 1970’s and early 1980’s, and the decline in stock yields during the past 20 years”. Fourthly, it paves the way for a time-varying stock market risk premium, which is an enhancement of classical Gordon type models.
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