We introduce a theory of stochastic integration with respect to a family of
semimartingales depending on a continuous parameter, as a mathematical
background to the theory of bond markets. We apply our results to the problem
of super-replication and utility maximization from terminal wealth in a bond
market. Finally, we compare our approach to those already existing in
literature.Comment: Published at http://dx.doi.org/10.1214/105051605000000548 in the
Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute
of Mathematical Statistics (http://www.imstat.org