“…firstly, the multiplier-accelerator theory, which synthesized approaches proposed by John Maynard Keynes and Albert Aftalion and further developed by such international and Russian researchers as J.-L.Bailly [1], H.-U.Brautzsch, J.Günther, B.Loose, U. Ludwig, N.Nulsch [2], S.Cristian, M.Marius-Corneliu, S.AuraGabriela, M.Dorin [3], B.Domański, K.Gwosdz [4], M.Dupaigne, P.Fève [5], L.A.Kormishkina, E.D.Kormishkin, D.A.Koloskov [6], R.Lee [7], W.J.Ma [8], G.V.Moura [9], S.Ogibayashi, K.Takashima [10], T.Ovsiannikova, O.Rabtsevich, I.Yugova [11], G.Quaas [12], E.C.Urdiales, J.L.Gallardo [13], D.J.Zhao, and X.F.Gao [14]. This theory was originally designed for the national and regional level but it can be adjusted for the municipal level, too; secondly, the concept of investment management in socio-economic systems, based on the theories of added values and capital reproduction [15].…”