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As a consequence of the financial crises, risk management became moreimportant and real-world dynamics of interest-rate models moved into the focusof interest. Since risk-neutral dynamics are classically important to computeprices of financial derivatives, it is interesting when real-world dynamics canbe related to risk-neutral dynamics via an equivalent change of measures. Inthis article we give deterministic conditions in a general Heath-Jarrow-Mortonframework driven by a Hilbert space valued Brownian motion and a Poisson randommeasure. Our conditions are of Lipschitz type and therefore easy to verify.

A Note on Real-World and Risk-Neutral Dynamics for Heath-Jarrow-Morton Frameworks