What determines how trade in a commodity is divided between privately negotiated transactions via "middle men" (dealer/brokers) in a telephone or "dealer market" versus transactions via "market makers" (specialists) at publicly observable bid/ask prices? To address this question, we extend...

The paper is dedicated to exploration and appliance of duality principle in firm behavior. The duality of firm’s behavior in contrast to non-vector one is stated; based on this approach the exploration of firm’s activity taking into account the targets and tools of their achievement, which are...