Introduction: Comparative Analyses of Shadow Economies of Turkic Republics

This introductory chapter situates the study of shadow economies within the broader economic, institutional, and geopolitical context of the Turkic Republics. It begins by highlighting the strategic significance of these countries in Eurasia, their shared cultural legacies, and the divergent institutional trajectories shaped by socialist and capitalist heritages. The chapter provides conceptual clarifications of the multiple terms used to describe economic activities outside formal structures, outlining four main theoretical approaches—dualistic, legalist, structuralist, and institutionalist—and their relevance for understanding informality in the region. It then explores the historical roots of shadow economies, particularly the Soviet “second economy,” and contrasts them with the experiences of Türkiye and Northern Cyprus. Methodological challenges in measuring informality are addressed through a discussion of MIMIC-based estimates and the World Bank’s global informal economy database, which provide the empirical foundation for comparative analyses. The chapter presents a regional overview of trends in shadow economy size, consistency across indicators, and cross-country divergences, supported by figures and correlations. Finally, it previews the country-specific chapters, identifies recurring themes such as institutional trust, technological change, labor market dynamics, and sustainability concerns, and distills twelve lessons learned. By doing so, this chapter establishes a coherent framework for analyzing shadow economies across the Turkic Republics and positions the volume as the first comprehensive comparative study on the subject.