Аннотация
Corruption remains a systemic constraint on economic development, institutional performance, and investment activity in transition economies. For Kazakhstan, the implementation of OECD anti-corruption standards represents a critical step toward improving public governance, enhancing transparency, and reducing transaction costs. This research aims to assess the economic consequences of adopting OECD integrity frameworks and to identify institutional mechanisms through which anti-corruption reforms influence national economic indicators. The research applies a mixed-method approach combining qualitative content analysis of OECD documents and national legislation with quantitative evaluation of macroeconomic data for 2010–2024. Comparative institutional analysis and econometric modelling were used to estimate the relationship between integrity indicators, regulatory quality, and investment dynamics. The results show that stronger institutional integrity, improved regulatory quality, and digitalization of public services correlate with higher inflows of foreign direct investment, reduced transaction costs, and moderate acceleration of economic growth. Partial institutionalization of OECD recommendations is identified as a key barrier limiting the full economic impact of reforms. The research develops an institutional-economic model explaining how OECD anti-corruption standards shape economic outcomes in Kazakhstan. It introduces a refined typology of economic effects arising from integrity reforms and provides evidence on the mechanisms linking institutional quality to investment and governance performance. Key words: economy, anticorruption, institutionalism, efficiency, regulation, reforms, governance