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Furthermore , depending on the specific project theme , as for the main implementation body for ODA , private-sector corporations and NGOs should be used , and greater efficiency aimed for. There will be two lectures per week and tutorials will be arranged from week 3 of Michaelmas term . Some tutorials will be based on a collection of Mathematica notebooks accompanying the textbook by Varian . The security situation in other parts of the country remains considerably more fragile , and as Under-Secretary-General Prendergast and others have pointed out , ways must be found to ensure that the benefits of stability are not restricted to Kabul and its immediate environs . Much of the mathematics will be familiar , and the emphasis will be on applying it in economics . Generally , mathematics will be fundamental to the course , so you should expect to spend time learning some additional mathematics on your own if necessary . International assistance should be made the most important element of Japan 's international policy , and ways must be found to obtain Japanese people 's understanding and support for international contributions . New External Examiners must be briefed on their task as soon as possible after appointment .