Keywords: estimates, indicators, joint resource exploitation, exploitation dynamics model, multicriteria analysis, set for indication, Senegal, fisheries, biomass levels, incomes, nominal activity, sustainable development, sustainability
Information at the interface between supply and demand for indicators: the use of a model with estimated parameter values as a base for indication in multicriteria analyses
An indicator must be defined according to at least three points of view. It must be a parameter of a model according to which the objective of the decision can be represented; it must be an argument of a decision function; and it must be estimable through a function of available data. The whole set of estimates of the parameters of a model is a multidimensional statistic, i.e. a set of functions of available data. This statistic is often seen as a list of indicators; it can also be considered as a set for indication that may replace the original data set for any further purpose of indication. Using as a case study the Senegalese artisanal fishery, an illustration is given with several control variables in the context of a multicriteria objective dealing with biomass levels, incomes and nominal activity. These results may be useful for decision making if they are considered as a step in the context of dialogue(s) between actors involved in the fisheries system.