Economics, the study of resource allocation and wealth distribution, has evolved from classical political economy to specialized analyses of markets, money, and trade. This overview traces the historical development of economic thought, examining foundational theories, institutional practices, and the enduring relevance of economic analysis in understanding modern capitalism.
About Our Editorial Process
This guide is prepared using historical bibliographic research,
literary references, and structured analysis of recognized works.
Our editorial team reviews book selection based on historical
importance, cultural influence, and literary significance.
About This Literary Category
Economics as a formal discipline emerged during the Enlightenment, with Adam Smith's 'The Wealth of Nations' (1776) laying the groundwork for classical political economy. The 19th century saw the refinement of value theory by David Ricardo and John Stuart Mill, who focused on distribution among rent, profit, and wages. The marginal revolution of the 1870s, led by Jevons, Menger, and Walras, shifted emphasis to subjective value and utility. By the early 20th century, economists like J.A. Hobson and B.M. Anderson Jr. critiqued static equilibrium models, advocating dynamic approaches that incorporated credit, speculation, and institutional realities. The period also witnessed the rise of specialized financial literature—guides to stock speculation, commodity trading, and banking—reflecting the growing complexity of capitalist economies. International influences, from British classical theory to American pragmatism, shaped diverse schools of thought. Today, economics remains vital for analyzing market behavior, public policy, and global trade, with historical texts offering insights into enduring debates about value, money, and economic justice.
Publication Chronology & Historical Span of Economics
Our Economics digital archive encompasses 67 cataloged masterworks, spanning a chronological range from 2008 (Successful Stock Speculation — Reading Notes by Butler, John James, 1867-) to 2025 (The exposition of 1851 — Context and Discussion by Babbage, Charles, 1791-1871, De Morgan, Augustus, 1806-1871 [Contributor], Weld, Charles Richard, 1813-1869 [Contributor]). The following verified timeline details the sequential release of core literary milestones within this domain:
- 2008: Successful Stock Speculation — Reading Notes — Butler, John James, 1867-
- 2009: The Evolution of Modern Capitalism: A Study of Machine Production — Reading Notes — Hobson, J. A. (John Atkinson), 1858-1940
- 2009: The Fabric of Civilization A Short Survey of the Cotton Industry in the United States — Text and Context — Guaranty Trust Company of New York
- 2009: Bremen Cotton Exchange, 1872/1922 — Context and Discussion — Cramer, Andreas Wilhelm, 1855-1942, Uhte, Ch. F. C. [Translator]
- 2009: The New York Stock Exchange and Public Opinion Remarks at Annual Dinner, Association of Stock Exchange Brokers, Held at the Astor Hotel, New York, January 24, 1917 — Inside the Classic — Kahn, Otto H., 1867-1934
- 2009: About sugar buying for jobbers — Text and Context — Dyer, B. W. (Benjamin Wheeler), 1887-1953
- 2009: All about coffee — Context and Discussion — Ukers, William H. (William Harrison), 1873-1945
- 2009: Principles of Political Economy Abridged with Critical, Bibliographical, and Explanatory Notes, and a Sketch of the History of Political Economy — Reading Notes — Laughlin, J. Laurence (James Laurence), 1850-1933 [Editor], Mill, John Stuart, 1806-1873
- 2010: Political economy — Reading Companion — Jevons, William Stanley, 1835-1882
- 2010: On The Principles of Political Economy, and Taxation — Story, Setting & Ideas — Ricardo, David, 1772-1823
- 2011: Guide to Hotel Housekeeping — Text and Context — Palmer, Mary E. (Mary Elizabeth), 1868-
- 2011: The Value of Money — Reading Companion — Anderson, Benjamin M. (Benjamin McAlester), 1886-1949
- 2011: The express companies of the United States — Context and Discussion — Benedict, Bertram, 1891-1978, Laidler, Harry W. (Harry Wellington), 1884-1970 [Author of introduction, etc.]
- 2011: Forging Ahead in Business — Story, Setting & Ideas — Alexander Hamilton Institute (U.S.)
- 2012: Monopolies and the People — Edition Insights — Cloud, D. C.
- 2012: Principles of Political Economy, Vol. 2 — Edition Insights — Lalor, John J. (John Joseph), -1899 [Translator], Roscher, Wilhelm, 1817-1894
- 2012: The Principles of Economics, with Applications to Practical Problems — Story, Setting & Ideas — Fetter, Frank A. (Frank Albert), 1863-1949
- 2012: A Century in the Comptroller's Office, State of New York, 1797 to 1897 — Reading Notes — Roberts, James A. (James Arthur), 1847-1922
- 2012: The Accumulation of Capital — A Closer Reading — Luxemburg, Rosa, 1871-1919, Robinson, Joan, 1903-1983 [Author of introduction, etc.], Schwarzschild, Agnes [Translator]
- 2013: Principles of Political Economy — A Closer Reading — Perry, Arthur Latham, 1830-1905
Author Bibliographical Footprint
A breakdown of primary literary contributors and their recorded volume within this collection:
| Author Name | Cataloged Works | Representative Titles |
|---|---|---|
| Ritchie, J. Ewing (James Ewing), 1820-1898 | 2 | Bessbrook and Its Linen Mills: A Short Narrative of a Model Temperance Town — Edition Insights, Money-making men; or, how to grow rich — Reading Companion |
| Smart, William, 1853-1915 | 2 | Women's wages — Story, Setting & Ideas, An introduction to the theory of value — Inside the Classic |
| Cary, John, -1720? | 2 | An Essay on the State of England In Relation to Its Trade, Its Poor, and Its Taxes, for Carrying on the Present War Against France — A Reader’s Guide, An Essay Towards Regulating the Trade, and Employing the Poor of This Kingdom Whereunto is Added, an Essay Towards Paying Off the Publick Debts — Edition Insights |
| Butler, John James, 1867- | 1 | Successful Stock Speculation — Reading Notes |
| Hobson, J. A. (John Atkinson), 1858-1940 | 1 | The Evolution of Modern Capitalism: A Study of Machine Production — Reading Notes |
| Guaranty Trust Company of New York | 1 | The Fabric of Civilization A Short Survey of the Cotton Industry in the United States — Text and Context |
| Cramer, Andreas Wilhelm, 1855-1942, Uhte, Ch. F. C. [Translator] | 1 | Bremen Cotton Exchange, 1872/1922 — Context and Discussion |
| Kahn, Otto H., 1867-1934 | 1 | The New York Stock Exchange and Public Opinion Remarks at Annual Dinner, Association of Stock Exchange Brokers, Held at the Astor Hotel, New York, January 24, 1917 — Inside the Classic |
| Dyer, B. W. (Benjamin Wheeler), 1887-1953 | 1 | About sugar buying for jobbers — Text and Context |
| Ukers, William H. (William Harrison), 1873-1945 | 1 | All about coffee — Context and Discussion |
| Laughlin, J. Laurence (James Laurence), 1850-1933 [Editor], Mill, John Stuart, 1806-1873 | 1 | Principles of Political Economy Abridged with Critical, Bibliographical, and Explanatory Notes, and a Sketch of the History of Political Economy — Reading Notes |
| Jevons, William Stanley, 1835-1882 | 1 | Political economy — Reading Companion |
Century Distribution of Economics Literature
Distribution of published texts categorized by historical centuries:
| Century Span | Volume of Masterpieces |
|---|---|
| 2001 - 2100 | 67 books |
- Oldest publication: 2008
- Newest publication: 2025
- Average publication year: 2017
- Most represented author: Ritchie, J. Ewing (James Ewing), 1820-1898 (2 books)
Critical Analysis of Core Masterpieces
Successful Stock Speculation — Reading Notes
by Butler, John James, 1867-
Historical Significance
A practical manual from the early 20th century that codifies speculative principles for stock traders, reflecting the era's growing retail investment culture.
Historical Context
Published in 2008 but based on earlier writings, the book emerges from the period after the Panic of 1907, when stock market regulation was minimal and speculation was widespread.
Literary Style
Instructional and methodical, using a two-word framework ('What' and 'When') to organize advice, with symmetrical chapters on what to buy and what not to buy.
Writing Style
Direct and cautionary, emphasizing risk avoidance over profit pursuit, with numbered lists and bullet points for clarity.
Major Themes
Risk management, the importance of timing and selection, the dangers of speculation, and the value of discipline.
Critical Reception
Not widely reviewed; the text is a niche manual for practitioners rather than a scholarly work.
Legacy
Influential among early 20th-century speculators; its principles of safety-first trading remain relevant in modern investment education.
Adaptations
None known.
Recommended Audience
Investors, traders, and students of financial history interested in early stock market practices.
Reading Difficulty
Moderate; technical terms are explained, but assumes basic familiarity with stock trading.
Main Characters
No characters; the author addresses the reader directly.
Setting
Early 20th-century United States, primarily the New York Stock Exchange.
Literary Movement
Practical finance literature; part of the early 'how-to' investment genre.
Similar Books
['The New York Stock Exchange and Public Opinion', 'About sugar buying for jobbers']
Key Literary Concepts
Related Topics
The Evolution of Modern Capitalism: A Study of Machine Production — Reading Notes
by Hobson, J. A. (John Atkinson), 1858-1940
Historical Significance
A foundational work in economic history that analyzes the role of machinery in transforming industrial capitalism, anticipating later theories of technological change.
Historical Context
Written in 1902, during the Second Industrial Revolution, when mechanization was reshaping production and social relations.
Literary Style
Scholarly and analytical, with a clear thesis that machinery is the central factor in industrial evolution, supported by historical and theoretical arguments.
Writing Style
Academic prose, methodical and cautious, with frequent references to earlier economists and historical examples.
Major Themes
The impact of machinery on industrial structure, the evolution of competition into combination, and the cyclical nature of capitalist crises.
Critical Reception
Respected among economists and historians for its systematic approach; Hobson's later work on imperialism also drew on these ideas.
Legacy
Influenced later studies of technological change and economic cycles; remains a key text in the history of economic thought.
Adaptations
None known.
Recommended Audience
Students of economic history, historians of technology, and scholars of capitalism.
Reading Difficulty
Challenging; dense theoretical content and historical references require careful reading.
Main Characters
No characters; the author presents a theoretical analysis.
Setting
Industrializing Europe and America, late 18th to early 20th centuries.
Literary Movement
Historical economics; part of the institutionalist tradition.
Similar Books
['Principles of Political Economy', 'On The Principles of Political Economy, and Taxation']
Key Literary Concepts
Related Topics
The Fabric of Civilization A Short Survey of the Cotton Industry in the United States — Text and Context
by Guaranty Trust Company of New York
Historical Significance
A corporate survey that reveals how early 20th-century financial institutions viewed the cotton industry as an integrated system of credit and trade.
Historical Context
Published in 1919 by a bank, reflecting post-WWI economic expansion and the central role of cotton in American exports.
Literary Style
Impersonal and declarative, typical of institutional publications, focusing on financial and logistical mechanics rather than narrative.
Writing Style
Technical and precise, with detailed descriptions of credit instruments and banking practices.
Major Themes
The financial infrastructure of the cotton trade, the role of credit in commodity markets, and the efficiency of corporate capitalism.
Critical Reception
Not widely reviewed; valued as a primary source for business history.
Legacy
Provides insight into early 20th-century corporate thinking and the financialization of agriculture.
Adaptations
None known.
Recommended Audience
Business historians, economists studying commodity chains, and researchers of early corporate communications.
Reading Difficulty
Moderate; some financial terminology may be unfamiliar to general readers.
Main Characters
No characters; the text is an institutional report.
Setting
United States, early 20th century, focusing on cotton-growing regions and financial centers.
Literary Movement
Corporate literature; part of the genre of business surveys.
Similar Books
['Bremen Cotton Exchange, 1872/1922', 'All about coffee']
Key Literary Concepts
Related Topics
Bremen Cotton Exchange, 1872/1922 — Context and Discussion
by Cramer, Andreas Wilhelm, 1855-1942, Uhte, Ch. F. C. [Translator]
Historical Significance
A commemorative history of a major European commodity exchange, documenting the evolution of futures trading and hedging practices.
Historical Context
Published in 1922 to mark the exchange's 50th anniversary, during a period of global economic instability after WWI.
Literary Style
Hybrid of institutional memoir and technical manual, with a philosophical preface invoking Hercules as a symbol of industrial progress.
Writing Style
Authoritative and detailed, blending historical narrative with explanations of futures contracts and exchange rules.
Major Themes
The role of exchanges in stabilizing commodity prices, the mechanics of hedging, and the institutional regulation of trade.
Critical Reception
Well-regarded among economic historians for its detailed account of exchange operations.
Legacy
A key source for understanding the development of commodity futures markets in Europe.
Adaptations
None known.
Recommended Audience
Historians of finance, economists studying derivatives, and researchers of German economic history.
Reading Difficulty
Moderate to challenging; technical sections on futures may require background knowledge.
Main Characters
No characters; the author, A.W. Cramer, appears as narrator.
Setting
Bremen, Germany, 1872-1922, with references to global cotton markets.
Literary Movement
Institutional history; part of the genre of exchange commemorative volumes.
Similar Books
['The Fabric of Civilization', 'About sugar buying for jobbers']
Key Literary Concepts
Related Topics
The New York Stock Exchange and Public Opinion Remarks at Annual Dinner, Association of Stock Exchange Brokers, Held at the Astor Hotel, New York, January 24, 1917 — Inside the Classic
by Kahn, Otto H., 1867-1934
Historical Significance
A primary document of early financial public relations, revealing how Wall Street leaders sought to manage criticism during the Progressive Era.
Historical Context
Delivered in 1917, amid public scrutiny of financial institutions and debates over regulation.
Literary Style
Rhetorical and defensive, using a self-interrogation format to preempt criticism and advocate for personal diplomacy.
Writing Style
Persuasive and conversational, with a tone of reasoned conciliation.
Major Themes
Public relations, the legitimacy of financial markets, the evolution of ethical standards, and the power of personal engagement.
Critical Reception
Not widely reviewed; valued as a historical artifact of financial communication.
Legacy
Illustrates early strategies for corporate reputation management.
Adaptations
None known.
Recommended Audience
Historians of finance, public relations scholars, and students of Progressive Era politics.
Reading Difficulty
Easy; the speech is accessible and engaging.
Main Characters
Otto H. Kahn (speaker), E.H. Harriman (mentioned).
Setting
New York City, 1917, at the Astor Hotel.
Literary Movement
Financial oratory; part of the genre of business speeches.
Similar Books
['Successful Stock Speculation', 'The Value of Money']
Key Literary Concepts
Related Topics
About sugar buying for jobbers — Text and Context
by Dyer, B. W. (Benjamin Wheeler), 1887-1953
Historical Significance
A practical guide to hedging in the sugar market, demonstrating how futures exchanges were used by mid-level traders in the early 20th century.
Historical Context
Published in 1921, after WWI disrupted sugar supplies and prices, increasing the need for risk management.
Literary Style
Pedagogical and persuasive, using metaphors (time as croupier) and concrete examples to explain hedging.
Writing Style
Clear and instructional, alternating between abstract principles and numerical illustrations.
Major Themes
Hedging as profit insurance, the management of time uncertainty, and the contrast between speculation and protection.
Critical Reception
Not widely reviewed; a niche manual for sugar jobbers.
Legacy
Provides insight into early commodity hedging practices.
Adaptations
None known.
Recommended Audience
Commodity traders, agricultural economists, and historians of futures markets.
Reading Difficulty
Moderate; requires basic understanding of futures contracts.
Main Characters
No characters; the author addresses the jobber directly.
Setting
United States, early 1920s, focusing on the New York Coffee and Sugar Exchange.
Literary Movement
Practical finance; part of the commodity trading manual genre.
Similar Books
['Bremen Cotton Exchange, 1872/1922', 'All about coffee']
Key Literary Concepts
Related Topics
All about coffee — Context and Discussion
by Ukers, William H. (William Harrison), 1873-1945
Historical Significance
A comprehensive reference work on the coffee industry, documenting its history, trade, and technology up to 1922.
Historical Context
Published in 1922, after decades of research, during a period of global coffee trade expansion.
Literary Style
Encyclopedic and reference-oriented, with extensive appendices, chronology, and bibliography.
Writing Style
Impersonal and factual, dense with proper names, patent numbers, and technical details.
Major Themes
The material and commercial infrastructure of the coffee trade, technological innovation, and the global commodity chain.
Critical Reception
Praised for its thoroughness; a standard reference for coffee historians.
Legacy
Remains a key source for the history of coffee production and trade.
Adaptations
None known.
Recommended Audience
Historians of commodities, food studies scholars, and coffee industry professionals.
Reading Difficulty
Moderate to challenging; technical sections may be dense.
Main Characters
No characters; the author is a compiler.
Setting
Global, with emphasis on coffee-producing countries and trading centers like New York.
Literary Movement
Reference work; part of the trade literature genre.
Similar Books
['The Fabric of Civilization', 'Bremen Cotton Exchange, 1872/1922']
Key Literary Concepts
Related Topics
Principles of Political Economy Abridged with Critical, Bibliographical, and Explanatory Notes, and a Sketch of the History of Political Economy — Reading Notes
by Laughlin, J. Laurence (James Laurence), 1850-1933 [Editor], Mill, John Stuart, 1806-1873
Historical Significance
A pedagogical abridgment that adapts Mill's classical economics for American students, incorporating contemporary monetary debates.
Historical Context
Published in 1885, during the post-Civil War era of greenback controversy and debates over monetary policy.
Literary Style
Textbook format with editorial additions; Laughlin's notes engage critically with Mill's text.
Writing Style
Academic and argumentative, with Laughlin's insertions providing historical context and policy commentary.
Major Themes
Classical political economy, monetary theory, the dangers of inflation, and the role of government in currency.
Critical Reception
Used as a college textbook; Laughlin's notes were valued for their relevance to American economic issues.
Legacy
Helped shape the teaching of economics in late 19th-century America.
Adaptations
None known.
Recommended Audience
Students of economic thought, historians of economic education, and scholars of monetary policy.
Reading Difficulty
Challenging; requires familiarity with classical economics.
Main Characters
John Stuart Mill (author), J. Laurence Laughlin (editor).
Setting
19th-century Britain and United States, with focus on monetary debates.
Literary Movement
Classical political economy; part of the textbook tradition.
Similar Books
['Political economy', 'On The Principles of Political Economy, and Taxation']
Key Literary Concepts
Related Topics
Political economy — Reading Companion
by Jevons, William Stanley, 1835-1882
Historical Significance
A primer by a leading marginalist economist, designed to teach economic principles to a broad audience.
Historical Context
Published in the 1880s, during the rise of marginal utility theory and debates over trade unionism.
Literary Style
Pedagogical and plain, using everyday analogies and direct refutations of common fallacies.
Writing Style
Clear and assertive, with a tone of common-sense instruction.
Major Themes
Productivity as the source of wealth, the fallacy of labor restrictions, and the benefits of free trade.
Critical Reception
Well-received as an introductory text; praised for its clarity.
Legacy
Influenced generations of students and popularized marginalist ideas.
Adaptations
None known.
Recommended Audience
Students of economics, general readers interested in economic principles.
Reading Difficulty
Easy; accessible to beginners.
Main Characters
No characters; the author addresses the reader.
Setting
Late 19th-century Britain, with examples from Lancashire and Wiltshire.
Literary Movement
Marginalist economics; part of the popular economics genre.
Similar Books
['Principles of Political Economy', 'On The Principles of Political Economy, and Taxation']
Key Literary Concepts
Related Topics
On The Principles of Political Economy, and Taxation — Story, Setting & Ideas
by Ricardo, David, 1772-1823
Historical Significance
A foundational text of classical economics that established the theory of comparative advantage and the distribution of income.
Historical Context
First published in 1817, during the aftermath of the Napoleonic Wars and debates over the Corn Laws.
Literary Style
Systematic and argumentative, building a deductive framework from first principles.
Writing Style
Dense and logical, with frequent references to Adam Smith and other economists.
Major Themes
The distribution of rent, profit, and wages; the theory of comparative advantage; the incidence of taxation.
Critical Reception
Highly influential; praised for its rigor but criticized for its abstract assumptions.
Legacy
Cornerstone of classical economics; shaped later trade theory and public finance.
Adaptations
None known.
Recommended Audience
Students of economics, historians of economic thought, and scholars of classical liberalism.
Reading Difficulty
Challenging; requires careful reading and background in economic theory.
Main Characters
David Ricardo (author), Adam Smith (referenced).
Setting
Early 19th-century Britain, with examples from agriculture and international trade.
Literary Movement
Classical political economy.
Similar Books
['Principles of Political Economy', 'Political economy']
Key Literary Concepts
Related Topics
Guide to Hotel Housekeeping — Text and Context
by Palmer, Mary E. (Mary Elizabeth), 1868-
Historical Significance
A practical manual that documents early 20th-century hotel management practices, particularly for women housekeepers.
Historical Context
Published in 1908, during the expansion of the hotel industry in the United States.
Literary Style
Instructional and anecdotal, with a personal voice and concrete advice.
Writing Style
Direct and empathetic, addressing managers and staff with practical tips.
Major Themes
Efficiency in hotel operations, inventory management, staff relations, and the professionalization of housekeeping.
Critical Reception
Not widely reviewed; valued as a primary source for hospitality history.
Legacy
Provides insight into early 20th-century hotel management and women's work.
Adaptations
None known.
Recommended Audience
Hospitality historians, scholars of women's labor, and hotel management students.
Reading Difficulty
Easy; accessible to general readers.
Main Characters
Mary E. Palmer (author), Clara Morris (mentioned).
Setting
United States, early 1900s, primarily the Hotel Ruffner in Charleston, West Virginia.
Literary Movement
Practical manual; part of the domestic economy genre.
Similar Books
['The Fabric of Civilization']
Key Literary Concepts
Related Topics
The Value of Money — Reading Companion
by Anderson, Benjamin M. (Benjamin McAlester), 1886-1949
Historical Significance
A critique of the quantity theory of money, advocating a dynamic approach that incorporates credit and speculation.
Historical Context
Published in 1917, during debates over monetary policy and the role of the Federal Reserve.
Literary Style
Academic and argumentative, with detailed institutional analysis and statistical evidence.
Writing Style
Dense and technical, but grounded in concrete examples from the New York Stock Exchange.
Major Themes
The dynamic nature of money, the role of credit, the critique of static equilibrium theory, and the importance of speculation.
Critical Reception
Influential among heterodox economists; praised for its institutional detail.
Legacy
Contributed to the development of monetary theory and the critique of monetarism.
Adaptations
None known.
Recommended Audience
Economists, monetary theorists, and historians of economic thought.
Reading Difficulty
Challenging; requires background in monetary economics.
Main Characters
Benjamin M. Anderson Jr. (author).
Setting
Early 20th-century United States, focusing on the New York Stock Exchange and banking system.
Literary Movement
Heterodox economics; part of the institutionalist tradition.
Similar Books
['The New York Stock Exchange and Public Opinion', 'Principles of Political Economy']
Key Literary Concepts
Related Topics
Frequently Asked Questions
How did classical economists like Ricardo and Mill influence later economic thought?
Ricardo and Mill established the foundations of classical economics, focusing on distribution, value, and trade. Their work influenced later schools, including neoclassical and Marxist economics. Ricardo's theory of comparative advantage remains central to international trade theory, while Mill's principles were adapted by later economists like Alfred Marshall.
What role did commodity exchanges play in the development of modern financial markets?
Commodity exchanges like the Bremen Cotton Exchange and the New York Coffee and Sugar Exchange pioneered futures trading and hedging, which allowed producers and traders to manage price risk. These institutions standardized contracts, established grading systems, and created centralized markets, laying the groundwork for modern derivatives markets.
Why did early 20th-century economists critique the quantity theory of money?
Economists like B.M. Anderson Jr. argued that the quantity theory ignored the role of credit, speculation, and dynamic adjustments. They contended that money's value is shaped by institutional practices and that static equilibrium models fail to capture real-world monetary phenomena, such as the impact of bank credit on trade.
How did the cotton industry's financial infrastructure reflect broader economic changes in the early 1900s?
The cotton industry's reliance on credit chains, warehouse receipts, and bank financing illustrated the financialization of agriculture. Surveys like 'The Fabric of Civilization' show how banks and exchanges integrated commodity production into a national credit system, reflecting the growing interdependence of finance and industry.
What can historical economic texts teach us about modern financial crises?
Historical texts reveal recurring patterns, such as the dangers of speculation, the role of credit expansion, and the impact of monetary policy. Works like 'Successful Stock Speculation' and 'The Value of Money' offer insights into risk management and the dynamics of financial markets that remain relevant today.
Conclusion & Scholarly Summary
The evolution of economic thought from classical theory to early 20th-century institutional analysis reveals a discipline constantly adapting to new realities. The texts surveyed here—from Ricardo's abstract principles to practical manuals on stock speculation and commodity trading—demonstrate the interplay between theory and practice. Understanding this historical development enriches our grasp of modern economics and its enduring challenges.
