Consider a trading network in which there are two buyers (B1 andB2), two sellers (S1 and S2) and one trader(T1). All of the buyersand the sellers are allowed to trade with the trader. The sellerseach have one unit of the object and value it at 0; the buyers arenot endowed with the object, but they each want one unit; buyer B1attaches a value of 1 to one unit, while buyer B2 attaches a valueof 2 to one unit.a) Draw the trading network, with the trader as a square, thebuyers and the sellers as circles, and the edges representing pairsof people
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