Optimal strategy for water protection activity in regions

А. А. Волчек, П. В. Шведовский, Л. В. Образцов, Л. Г. Срывкина, Е. И. Кисель. ОСОБЕННОСТИ ОПТИМАЛЬНОЙ СТРАТЕГИИ ВОДООХРАННОЙ ДЕЯТЕЛЬНОСТИ В РЕГИОНАХThe methodology for constructing mathematical models to select the optimal strategy for water protection activity in the regions and for water consumers is considered. At the same time, the water environment is considered as a whole with all technical, environmental, economic and other problems associated with it. Particular attention is paid to linking and optimizing investments in water protection measures with maximizing the growth rates of the regional economy in the conditions of a given dynamics of water pollution at the planned growth rates of the economy. An analysis of mathematical models of the optimal strategy for water protection activities at the level of water consumer warnings is also given

Method for selecting a costeffective option of the sequence of construction of buildings and structures in a complex

А. Н. Кочурко, Л. Г. Срывкина. МЕТОДИКА ОЦЕНКИ ЭКОНОМИЧЕСКОЙ ЭФФЕКТИВНОСТИ ВАРИАНТОВ ОЧЕРЕДНОСТИ ЗАСТРОЙКИ КОМПЛЕКСА ЗДАНИЙ И СООРУЖЕНИЙWhen developing a justification for investment in the construction of facilities in accordance with regulatory documents, alternative studies and calculations should be carried out in order to determine the effectiveness of investments. This article offers a method for assessing the economic efficiency of options for the sequence of construction of a complex of buildings and structures. The method is based on the income approach (the net income generated by the complex of facilities is calculated) and on the cash flows discounting. At the same time, the economic effects for the investor are taken into account: effects from the reduction of discounted costs at the stage of construction of the complex, and effects in the field of operation of individual buildings and structures for the period of the calculation horizon