determination in Regression Analysis. In fact, if the data is centred, it represents the determination coefcient of the regression of each variable on the corresponding axis. This contribution allows us to know which variables are most directly related to each axis and therefore allows us to know the variables responsible for placing individuals on the projections on each of the axes. As the axes are constructed so that they are independent, the contribution of each of them to each variable is independent, so it is possible to calculate the contribution of a plane by simply adding up the contributions of the axes that form it. We therefore use these Multivariate Analysis Techniques in a context of dimensionality reduction, where the graphic representation of the data, through the HJ-BIPLOT methodology, allows us to explain the existing relationships between the competitive practices of the tourism business. The justifcation is based on interpretability and the observation that the vast majority of the results of multivariate data analysis can be expressed by lists of individuals, of variables or mixed lists of individuals and variables. This empirical observation allows that all results expressible in this way can naturally be represented by confgurations of markers of variables and individuals in BIPLOT. We believe that the results obtained will help in the process of formulating and implementing more efcient tourism practices and will also make it possible to assess the advantages of institutionalised recourse to international arbitration. 1. Results obtained The data obtained shows that, in the tourism sector, it makes sense to use an institutional system of international arbitration, given the importance given by respondents to the competence of the judge and the time spent on the dispute, as well as showing that tourism organizations beneft, in terms of performance and competitiveness, from voluntary adherence to institutional systems of international arbitration, to the extent that respondents categorically valued the speed of resolution (84%), only achievable with the arbitration of the dispute. Finally, it can also be concluded that, even though tourism organizations have to place their goods/services on the market at a marginally higher cost because of their adherence to an institutional system of international arbitration, they still beneft from higher performance and competitiveness, given the fact the respondents showed a predisposition to pay for the arbitration process, with 68% admitting this payment. Regarding the willingness to pay the cost of the arbitration process, the behaviour of hotels and travel agencies is somewhat similar. Indeed, 58% of the hotels and agencies showed willingness to pay for arbitration, with the diferences only appearing in the amounts they are willing to pay. In this chapter, agencies have shown a greater willingness to pay higher values, since 33% of the agencies are willing to pay 1.0% of the total value of the trip, while 42% of the hotels stick to 0.5% of the trip price. Also, regarding the perception held by hotels and agencies on the willingness of the customer/tourist to pay for the existence of an arbitration process, the results are not very divergent: most hotels and agencies considered that tourists would not pay for it, although agencies were slightly more sceptical than hotels (59% and 51%, respectively). From these data we can draw the 18
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