The thesis is organized as follows. Chapter 2 contains a survey of the three most in‡fluential models on fi…rm heterogeneity and of the most important empirical work on firrm heterogeneity. The chapter starts with a brief review of the homogeneous productivity imperfect competition literature. Chapter 2 …finishes with a comparison of the three most in‡fluential models of fi…rm heterogeneity and the oligopoly model put forward in the thesis. Chapter 3 addresses exporting uncertainty under heterogeneous popularity. Chapter 4 contains the chapter on …firm heterogeneity under oligopoly. Chapter 5 constitutes the models on …firm heterogeneity and endogenous quality. Chapter 6 points out the within-sector specialization model. Chapter 7 addresses the effect of importer characteristics on unit values and the role of markups and quality to explain this effect. Chapter 8 concludes.

From workers' wages to presidential elections, labor unions once exerted tremendous clout in American life. In the immediate post-World War II era, one in three workers belonged to a union. The fraction now is close to one in five, and just one in ten in the private sector. The only thing big about Big Labor today is the scope of its problems. While many studies have explained the causes of this decline, What Unions No Longer Do shows the broad repercussions of labor's collapse for the American economy and polity. Organized labor was not just a minor player during the middle decades of the twentieth century, Jake Rosenfeld asserts. For generations it was the core institution fighting for economic and political equality in the United States. Unions leveraged their bargaining power to deliver benefits to workers while shaping cultural understandings of fairness in the workplace. What Unions No Longer Do details the consequences of labor's decline, including poorer working conditions, less economic assimilation for immigrants, and wage stagnation among African-Americans. In short, unions are no longer instrumental in combating inequality in our economy and our politics, resulting in a sharp decline in the prospects of American workers and their families.

In the twentieth century, large companies employing many workers formed the bedrock of the U.S. economy. Today, on the list of big business's priorities, sustaining the employer-worker relationship ranks far below building a devoted customer base and delivering value to investors. As David Weil's groundbreaking analysis shows, large corporations have shed their role as direct employers of the people responsible for their products, in favor of outsourcing work to small companies that compete fiercely with one another. The result has been declining wages, eroding benefits, inadequate health and safety protections, and ever-widening income inequality. From the perspectives of CEOs and investors, fissuring--splitting off functions that were once managed internally--has been phenomenally successful. Despite giving up direct control to subcontractors and franchises, these large companies have figured out how to maintain the quality of brand-name products and services, without the cost of maintaining an expensive workforce. But from the perspective of workers, this strategy has meant stagnation in wages and benefits and a lower standard of living. Weil proposes ways to modernize regulatory policies so that employers can meet their obligations to workers while allowing companies to keep the beneficial aspects of this business strategy.

What happens if an employer cuts wages by one cent? Much of labor economics is built on the assumption that all the workers will quit immediately. Here, Alan Manning mounts a systematic challenge to the standard model of perfect competition. Monopsony in Motion stands apart by analyzing labor markets from the real-world perspective that employers have significant market (or monopsony) power over their workers. Arguing that this power derives from frictions in the labor market that make it time-consuming and costly for workers to change jobs, Manning re-examines much of labor economics based on this alternative and equally plausible assumption. The book addresses the theoretical implications of monopsony and presents a wealth of empirical evidence. Our understanding of the distribution of wages, unemployment, and human capital can all be improved by recognizing that employers have some monopsony power over their workers. Also considered are policy issues including the minimum wage, equal pay legislation, and caps on working hours. In a monopsonistic labor market, concludes Manning, the "free" market can no longer be sustained as an ideal and labor economists need to be more open-minded in their evaluation of labor market policies. Monopsony in Motion will represent for some a new fundamental text in the advanced study of labor economics, and for others, an invaluable alternative perspective that henceforth must be taken into account in any serious consideration of the subject.

We study the effects and historical contribution of monetary policy shocks to consumption and income inequality in the United States since 1980. Contractionary monetary policy actions systematically increase inequality in labor earnings, total income, consumption and total expenditures. Furthermore, monetary shocks can account for a significant component of the historical cyclical variation in income and consumption inequality. Using detailed micro-level data on income and consumption, we document the different channels via which monetary policy shocks affect inequality, as well as how these channels depend on the nature of the change in monetary policy.

A Nobel laureate reveals the often surprising rules that govern a vast array of activities -- both mundane and life-changing -- in which money may play little or no role. If you've ever sought a job or hired someone, applied to college or guided your child into a good kindergarten, asked someone out on a date or been asked out, you've participated in a kind of market. Most of the study of economics deals with commodity markets, where the price of a good connects sellers and buyers. But what about other kinds of "goods," like a spot in the Yale freshman class or a position at Google? This is the territory of matching markets, where "sellers" and "buyers" must choose each other, and price isn't the only factor determining who gets what. Alvin E. Roth is one of the world's leading experts on matching markets. He has even designed several of them, including the exchange that places medical students in residencies and the system that increases the number of kidney transplants by better matching donors to patients. In Who Gets What -- And Why, Roth reveals the matching markets hidden around us and shows how to recognize a good match and make smarter, more confident decisions.

This book addresses collective bargaining in an intertemporal monetary macroeconomy of the aggregate supply–aggregate demand (AS–AD) type with overlapping generations of consumers and with a public sector. The results are presented in a unified framework with a commodity market that clears competitively. By analyzing the implications of three variants of collective bargaining – efficient bargaining in a uniform and a segmented labor market and “right-to-manage” wage bargaining – it identifies the quantity of money, price expectations, union power, and union size as the determinants of temporary equilibria. In the three scenarios, it characterizes and compares the temporary equilibria using both analytical and numerical techniques, with an emphasis on allocations, welfare, and efficiency. It also discusses the dynamic evolution under rational expectations and its steady states in nominal and real terms. Lastly, it demonstrates conditions for stability regarding a balanced monetary expansion of the economy.