The development of public-private partnership in the Russian economy is conditioned on the need to ensure stable economic growth and improve the quality of life of the population. Imperfection of the regulatory legislation of the private-public partnership, lack of clearly defined terms and concepts, proportion and strategic importance of private-public partnership projects have predetermined numerous theoretical studies, the results of which confirm the high terminological uncertainty of the characteristics and systematization of models, forms and mechanisms of private-public partnership implementation. The study of the modern conceptual and terminological apparatus of private-public partnership allowed to clarify the concepts of “private-public partnership PPP model”, “organizational and legal form of private-public partnership”, “mechanism of implementation” and their relationship, to justify the criteria of differentiation and to identify the models of organization, participation in capital and contractual model as priority areas of interaction between the state and business within private-public partnership, on the basis of which the organizational and legal forms of partnership and mechanisms of their implementation are systematized. There has been shown the classification of models, forms and mechanisms of private-public partnership; it has been stated that “a weak points” are mechanisms of private-public partnership realization, in terms of detail upkeep and operation order, which is stipulated by lack of imperfection of regulatory documents and methodological recommendations, as well as unique terms of arrangement and realization of a private-public partnership project. It has been recommended to develop realization mechanisms using current legislation and foreign practices, taking into account the Russian economic environment and the nature of a certain private-public partnership project. There have been revealed extra virtues that allow to unify terminological and conceptual apparatus of private-public partnership.

Special economic zones of the industrialproduction type are created in accordance with the legislation in order to develop the processing and high-tech industries, so it is possible to consider these structures to be the tools for improving innovative activity, as an integral component of modernization of industrial production. The SEZ "Lotus" created in the Astrakhan region is defined at the Federal level as a main platform for localization the production of the equipment and accessories in shipbuilding industry in the South of Russia and can be used for formation the pool of small innovative enterprises and shipbuilding enterprises allowing accumulating their financial resources for development and commercialization of innovative products and technologies.

The article highlights the importance of creating and operating the special economic zones in Russia in order to increase the investment attractiveness and competitiveness of the entities and strategically important industries in the Russian Federation. Traditionally, shipbuilding has been a priority economic activity in the Astrakhan region, which has led to creating an industrial special economic zone Lotоs, whose purpose is defined as formation of a local chain of shipbuilding and machine-building products in the south of Russia. The effectiveness of special economic zones is an integrated characteristic of the management company's ability to achieve the goals of creating and operating a special economic zone. As a result of the analysis of investment attrac-tiveness of the industrial special economic zone Lotоs, the problem areas of the management company's activities were identified: creating infrastructure facilities and attracting residents and investors. The substantial characteristic of investment projects of the residents (type of economic activity and its compliance with the objectives of the industrial special economic zone Lotоs, expected period and volume of investment, employment status, level of multiplicative effect on the regional economy) allowed formulating a conclusion about the necessity of differentiation of the state support for the investment projects of residents. There have been given the substantial characteristics of the projects of the residents: Shipbuilding Plant Lotos, JSC; Hexa-Lotos, LLC; Svoi, LLC; MedInTech, LLC; Atef-Russ, LLC; Marine Composite Shipbuilding, LLC; InProect, LLC; Protelux Lotоs, LLC; Stroyliderplus Lotоs, LLC; Helios Systems, LLC; Azka Composite, LLC; Naval Design International, LLC; Roza, LLC, etc. There have been offered the recommendations for the management company on developing a strategy for attracting residents and investors and establishing special preferential treatment for investment projects that are of strategic importance for the development of the regional economy and international cooperation are proposed.