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Arbitrage hedge portfolio investment strategy, as the futures market to avoid risk way to achieve one of the functions, and extensive use in the in mature foreign commodity futures market, arbitrage trading in the international investment funds and institutions 40% of the total trading volume or more. Arbitrage as a product of the market economy, standardize the development of China's commodity futures market steady in recent years, has gradually become active again, especially since last year, almost all futures fluctuated wildly, there has been also lose money even if the look on direction phenomenon, arbitrage trading has its unique advantage of maintaining a strong stability and profitability, and thus arbitrage transaction size growing situation. Market fully effective non arbitrage trading the common basis the active arbitrage, in turn, improve the efficiency of the market. Arbitrage transactions including cross-market arbitrage, spread arbitrage and cross-commodity arbitrage three basic modes. The law of one price benchmark principle, cross-market arbitrage the positions cost and Basis deviation derived intertemporal arbitrage, while there would be no correlation across commodity arbitrage mode of existence. No arbitrage equilibrium thinking in a balanced market conditions and arbitrage opportunities disappear, however, non-equilibrium is the normal state of the market, arbitrage opportunities everywhere in fact, in a junior development market, arbitrage is also possible to create surprising gains. More detailed theoretical discussion is not compelling commodity futures arbitrage activities, from a broader perspective to examine the arbitrage activities, summarizes the various forms of arbitrage that exists in the real economy, its meaning , characteristics and operation mechanism is based on the original expansion. The carry trade is a risk is relatively unilateral trade in small, stable earnings transactions, the transaction object and developed trading strategies is different from the unilateral price transactions. Holds the opposite direction, an equal number of contract positions to hedge part of the impact of price changes, the uncertainties, with lower volatility arbitrage portfolio value. Arbitrage trading with the spot operation can also be limited and the risk, even the theoretical risk. Its hedging properties, not only the formation of the hedge the price fluctuations of the day, can also form a protective price limits. Long-term perspective, arbitrage than unidirectional speculation has more attractive benefit / risk ratio, and thus more suitable for the operation of the institutional funds. In the empirical analysis section, respectively, to the copper cross-market arbitrage, intertemporal arbitrage, Soybean and soybean meal in Shanghai aluminum cross-commodity arbitrage empirical test.
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