Huang Huoxin

3.41182 learners

This book unpacks the core logic of the Qing Dynasty’s salt administration, revealing how systematic regulation turned salt—an indispensable daily commodity—into the empire’s second-largest fiscal revenue source. Centered on maximizing salt tax (yan ke) income, the Qing relied on four foundational systems: licensed merchant distribution, official performance assessments, anti-smuggling enforcement, and quota-based salt permits (yanyin). Leveraging salt’s concentrated production, inelastic demand, and flexible tax structure, the court avoided overburdening peasant households (unlike rigid land taxes) while securing critical funds for wars, disasters, and imperial needs. It explores the dynamic balance between tax revenue and administrative costs, detailing policy adjustments like the ticket salt reform when merchant burdens became unsustainable. The text also examines market-aligned quota tweaks and long-running salt zone disputes, driven by officials’ performance incentives and path dependence on inherited Ming systems. Ultimately, it frames Qing salt regulation as a 'revenue-generating control' model, balancing state fiscal goals with market realities and social stability.

Yu Jun

3.71025 learners

Yu Jun’s Product Methodology demystifies the evolving role of product managers (PMs) from its origins as Procter & Gamble’s brand-focused role to the data-driven, user-centric demands of the internet era. This comprehensive guide breaks down core frameworks defining successful PM work: mastering user models to predict behavior, designing sustainable transaction models for mutual value exchange, and applying rational decision-making strategies (data, logic, subjective judgment) to navigate trade-offs. It also addresses critical topics like balancing user and business value, reducing transaction costs, and navigating unique internet product iteration challenges. For aspiring and seasoned PMs alike, the book offers actionable career progression insights—from identifying high-potential candidates to overcoming mid-career bottlenecks—emphasizing that great PMs are shaped by practice, empathy, and deep understanding of economic and psychological principles.

Xue Zhaofeng

4.4749 learners

Forget dry textbooks stuffed with jargon—Xue Zhaofeng’s Economics Lectures turns everyday moments into accessible masterclasses in economic thinking. Tailored for regular people, not just finance experts, this book uses relatable scenarios: why train tickets sell out during peak travel seasons, why rent climbs in desirable neighborhoods, and even why we pick one coffee order over another. Xue breaks down core concepts like scarcity, opportunity cost, property rights, and transaction costs into simple, actionable lessons, showing how these ideas shape every choice we make—from career moves to grocery runs. Ditching complex equations, it teaches you to view the world through an economist’s lens, helping you spot hidden incentives, make smarter decisions, and cut through noise in debates about policy, business, and daily life. Whether you’re a student, professional, or curious learner, this book turns economics from an intimidating subject into a practical tool for navigating modern life.

Douglass C. North

4.4741 learners

Douglass C. North’s seminal work redefines our understanding of economic success by centering institutions—the formal rules (laws, constitutions) and informal constraints (norms, cultural traditions) that structure human political, economic, and social interaction. Departing from neoclassical economics’ frictionless market assumptions, North argues transaction costs (which account for over 45% of U.S. national income) and institutional frameworks are the true drivers of long-term economic performance. He unpacks three core puzzles: why institutional change deeply impacts economic outcomes, why inefficient institutions persist despite competitive pressures, and why nations diverge into growth or stagnation paths due to path dependence. Using real-world examples—from 19th-century America’s rise to Latin America’s stalled development, and the QWERTY keyboard’s lock-in effect—North explains how organizations shape and are shaped by institutions, and introduces adaptive efficiency as the key to sustained prosperity. This cornerstone of new institutional economics provides a framework to explain global economic disparities and guide policy.