<P>Where there has been no choice of law, the applicable law should be determined in accordance with the rule specified for the particular type of contract. Where the contract cannot be categorised as being one of the specified types or where its elements fall within more than one of the specified types, it should be governed by the law of the country where the party required to effect the characteristic performance of the contract has his habitual residence. In the case of a contract consisting of a bundle of rights and obligations capable of being categorised as falling within more than one of the specified types of contract, the characteristic performance of the contract should be determined having regard to its centre of gravity.</P>