TY JOUR TI Factors and mechanisms for increasing the efficiency of the region based on the use of special economic regimes (using the example of the Republic of Tatarstan) KW economic development KW regional development KW Republic of Tatarstan KW special economic regimes KW priority development areas KW economic diversification KW regional competitiveness JO Russian Journal of Management AU Apanaev, R.I. PY 2023 IS 11 PB Publishing Center RIOR