www.hellotxt.com/Immigration-Canada The aforesaid does not mean that such measures are obligatory or very desirable. We only specify that they should be considered as normal tools in an arsenal of measures on optimisation of migratory processes, and key parametres of a migratory policy of the country should be discussed and depend on results of this discussion openly. It is obvious that adequate discussion of the optimum country for a current condition of a migratory policy is impossible without consideration of constants on which it is based. We will try to consider and estimate them their authenticity.