Abstract
How non-linear are exact log price–dividend ratios in the fundamental state variables? We work out in continuous time a novel exact formula for the log price–dividend ratio to study how much non-linearity is generated by the persistence of an exogenous mean-reverting and homoskedastic state variable. Our pricing formula highlights that persistence fosters endogenous conditional heteroskedasticity of the stock returns by fueling the non-linearity of the log price–dividend ratio.
Original language | English |
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Pages (from-to) | 1-6 |
Number of pages | 6 |
Journal | Economics Letters |
Volume | 215 |
DOIs | |
Publication status | Published - 2022 |
Keywords
- Endogenous heteroskedasticity
- Log-linear approximation
- Long-run risk
- Non-linearity
- Price–dividend ratio