Involvement of expert judgement in dynamic model

In many areas models of different processes take into account various factors that are time-dependent and dependent on each other. Thus, it is advisable to construct a dynamic model in order to describe these dependences. In the dynamic model we use indicators. An indicator is a special index, which provides numerical values to important factors for the investigated sector. The values of indicators are obtained from statistical data. Also this dynamic model enables to forecast the dynamics of the indicators according to different new factors. Since the parameters of new factors are not exactly known (got from expert judgement), their influences on indicators are expressed as random variables with known probabilistic distributions. Indicators model based on historic data is adjusted by probabilistic model with the influence of new factors on indicators using a Bayesian method.