Evaluation of the effectiveness of the use of instruments to attract savings in Kazakhstan (for example, “BCC Invest” JSC)Gulmira Kassenova, Gulnar Nurgalieva, Ryszard Pukala, Aizhan Agatayeva and Nazgul SyrlybayevaE3S Web Conf., 159 (2020) 04014DOI: https://doi.org/10.1051/e3sconf/202015904014