New Institutional Economics: A Primer for the Working Economist distills a field too often left to jargon-heavy academic journals into a clear, working toolkit for economists, policy analysts, and serious students of markets. Drawing on the foundational insights of Ronald Coase, Douglass North, and Oliver Williamson, John M. Cobin walks the reader through transaction costs, property rights, contracts, and the evolution of institutions -- the rules of the game that shape every market outcome, for better or worse. Where standard price-theory textbooks assume frictionless exchange, this primer shows why institutions matter: how firms form to economize on transaction costs, how poorly defined property rights invite rent-seeking and waste, and how formal law interacts with informal norms to determine whether an economy thrives or stagnates. Each chapter builds toward practical application, equipping the working economist to diagnose institutional failure and to evaluate reform proposals with the same rigor applied to conventional price theory. Written in Cobins characteristically direct, liberty-minded style, this volume is a companion to his other primers on Austrian economics and public choice, forming a coherent framework for understanding markets, the state, and the institutions that bind them together. This Amharic edition is a professionally AI-assisted translation of the original English text.