Fig. 2From: Piecewise constant martingales and lazy clocks(Sample paths of Z): four sample paths of \(\tilde {Z}\) (circles) and Z (no marker) up to T=15 years, where \(\tilde {Z}\) is the Φ-martingale with Z0=0.5. a (η=25%, λ=20%) and b (η=15%, λ=50%)Back to article page