Chancellor George Osborne told students at Peking University that investment in each other's countries should not be seen as a threat but a great opportunity.
Boris Johnson reiterated this view telling ITV News that international investment should be encouraged.
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Botanique in Stoke Newington, east London, has around eight pieces of wood around a foot long for customers to hang on their walls.
The mayor, on a Brexit-themed visit to Paris, said he had not given up hope of securing a system of 'London only' work permits.
The dog, which is not a breed prohibited under the Dangerous Dogs Act, attacked its owner in Wood Green last week.