Now we will develop joint venture which stops some is a contract modern or enterprise contract or contract mercantile and known by some profane ones like commercial contract, which is studied in some maestras in civil and commercial right in the Peruvian state. Joint venture is an assumption of enterprise concentration thus corresponds to study the same in this soothes, which although it does not find regulation in the Peruvian club right, tambin is certain that for some authors if it finds legislative regulation but with another name which in any case must be matter of study on the part of the treaty writers. For some authors joint venture is a modern contract or enterprise or mercantile, thus tambin must be studied the same within the contractual right. This contract little is known in our means, and in any case slo by specialists must be applied not to induce to error the econmicos agents. That is to say, joint venture has the jurdica nature of a contract, thus is clear that it must be studied like a personal right, which by the way finds little application or reduced application in the Peruvian right, but little by little incrementar its use, thus we must be preparations for an increase of demand in such sense is clear that these subjects must be ordered to the specialists.
In our means the author who but has developed to east subject or modern contract is Sydney. Which has realized several publications on the same in the Peruvian right, works that by the way comprise of the Peruvian doctrine, which is source of the right. That is to say, we suggested the consultation of its works of investigation, in which one explains all almost the modern contracts, nevertheless, this with some modern contracts is not made like for example with the contract of renting of companies, which although it is certain is a contract, tambin is certain that it finds little diffusion in the Peruvian right and tambin by all means little application in the same.
The customer who is very not made entire prefers to operate in the deep ones because somebody goes to take the decision of investment for ele' '. At a moment of reduction of the basic interest – the Selic can fall below of 10% to the year in the next meeting to the Cup, -, in such a way bigger the weight of the costs in income of the investor. An applicator that had acquired last week R$ 5 a thousand in Letters of Tesouro Nacional (LTN) with expiration in 1 of January of 2012 would have in the Ita Broker an income of 5,17% in the rescue, already considered the costs and the taxation. If it opted, for example, for a broker whom it does not charge for the service, case of the Banif, Socopa and Spinelli, it would have a liquid return of 8,95%. Between an alternative and another one, the difference is of R$ 319, the equivalent 6.4%, more than what the real interest. 
