This document discusses data requirements for national policymaking in Turkey. It outlines the main administrative bodies that guide economic policy and the key policy documents they produce, including Development Plans, Medium Term Programs, and sectoral strategies. It also examines the types of statistics that are used in these documents, such as national accounts, employment, and banking data. The document identifies several areas where additional or improved data is needed, such as updated input-output tables, more disaggregated private sector investment and capital stock data, and addressing inconsistencies between different data producers.