We propose a general and highly efficient method for solving and estimating general equilibrium heterogeneous-agent models with aggregate shocks in discrete time. Our approach relies on the rapid computation and composition of sequence-space Jacobians—the derivatives of perfect-foresight equilibrium mappings between aggregate sequences around the steady state. We provide a fast algorithm for computing Jacobians for heterogeneous agents, a technique to substantially reduce dimensionality, a rapid procedure for likelihood-based estimation, a determinacy condition for the sequence space, and a method to solve nonlinear perfect-foresight transitions. We apply our methods to three canonical heterogeneous-agent models: a neoclassical model, a New Keynesian model with one asset, and a New Keynesian model with two assets.

In the context of interwar Poland, we find that Jews tended to be more literate than non Jews, but show that this finding is driven by a composition effect. In particular, most Jews lived in cities and most non-Jews lived in rural areas, and people in cities were more educated than people in villages regardless of their religion. The case of interwar Poland illustrates that the Jewish relative education advantage depends on the historical and institutional contexts.

Using millions of historical census records and modern birth certificates, we document that immigrants assimilated into US society at similar rates in the past and present. We measure cultural assimilation as immigrants giving their children less foreign names after spending more time in the United States, and show that immigrants erase about one-half of the naming gap with natives after 20 years both historically and today. Immigrants from poorer countries choose more foreign names upon first arrival in both periods but are among the fastest to shift toward native-sounding names. We find substantial cultural assimilation for immigrants of all education levels.

More than the persistent beat of a song or the structural frame of poetry, rhythm is a deeply imbedded force that drives our world and is also a central component of the condition of human existence. It’s the pulse of the body, a power that orders matter, a strange and natural force that flows through us. Virginia Woolf describes it as a “wave in the mind” that carries us, something we can no more escape than we could stop our hearts from beating.

Vincent Barletta explores rhythm through three historical moments, each addressing it as a phenomenon that transcends poetry, aesthetics, and even temporality. He reveals rhythm to be a power that holds us in place, dispossesses us, and shapes the foundations of our world. In these moments, Barletta encounters rhythm as a primordial and physical binding force that establishes order and form in the ancient world, as the anatomy of lived experience in early modern Europe, and as a subject of aesthetic and ethical questioning in the twentieth century.

A wide-ranging book covering a period spanning two millennia and texts from over ten languages, Rhythm will expand the conversation around this complex and powerful phenomenon.

By the end of the eighteenth century, politicians in America and France were invoking the natural rights of man to wrest sovereignty away from kings and lay down universal basic entitlements. Exactly how and when did “rights” come to justify such measures?
 
In On the Spirit of Rights, Dan Edelstein answers this question by examining the complex genealogy of the rights regimes enshrined in the American and French Revolutions. With a lively attention to detail, he surveys a sprawling series of debates among rulers, jurists, philosophers, political reformers, writers, and others, who were all engaged in laying the groundwork for our contemporary systems of constitutional governance. Every seemingly new claim about rights turns out to be a variation on a theme, as late medieval notions were subtly repeated and refined to yield the talk of “rights” we recognize today. From the Wars of Religion to the French Declaration of the Rights of Man and of the Citizen to the 1948 Universal Declaration of Human Rights, On the Spirit of Rights is a sweeping tour through centuries of European intellectual history and an essential guide to our ways of thinking about human rights today.

Thinking is much broader than what our science-obsessed, utilitarian culture often takes it to be. More than mere problem solving or the methodical comprehension of our personal and natural circumstances, thinking may take the form of a poem, a painting, a sculpture, a museum exhibition, or a documentary film. Exploring a variety of works by contemporary artists and writers who exemplify poetic thinking, this book draws our attention to one of the crucial affordances of this form of creative human insight and wisdom: its capacity to help protect and cultivate human freedom. All the contemporary works of art and literature that Poetic Thinking Today examines touch on our recent experiences with tyranny in culture and politics. They express the uninhibited thoughts and ideas of their creators even as they foster poetic thinking in us. In an era characterized by the global reemergence of authoritarian tendencies, Amir Eshel writes with the future of the humanities in mind. He urges the acknowledgment and cultivation of poetic thinking as a crucial component of our intellectual pursuits in general and of our educational systems more specifically.

Empires of Knowledge charts the emergence of different kinds of scientific networks – local and long-distance, informal and institutional, religious and secular – as one of the important phenomena of the early modern world. It seeks to answer questions about what role these networks played in making knowledge, how information traveled, how it was transformed by travel, and who the brokers of this world were.

Bringing together an international group of historians of science and medicine, this book looks at the changing relationship between knowledge and community in the early modern period through case studies connecting Europe, Asia, the Ottoman Empire, and the Americas. It explores a landscape of understanding (and misunderstanding) nature through examinations of well-known intelligencers such as overseas missions, trading companies, and empires while incorporating more recent scholarship on the many less prominent go-betweens, such as translators and local experts, which made these networks of knowledge vibrant and truly global institutions.

Empires of Knowledge is the perfect introduction to the global history of early modern science and medicine.

Systemic risk arises when shocks lead to states where a disruption in financial intermediation adversely affects the economy and feeds back into further disrupting financial intermediation. We present a macroeconomic model with a financial intermediary sector subject to an equity capital constraint. The novel aspect of our analysis is that the model produces a stochastic steady state distribution for the economy, in which only some of the states correspond to systemic risk states. The model allows us to examine the transition from "normal" states to systemic risk states. We calibrate our model and use it to match the systemic risk apparent during the 2007/2008 financial crisis. We also use the model to compute the conditional probabilities of arriving at a systemic risk state, such as 2007/2008. Finally, we show how the model can be used to conduct a macroeconomic "stress test" linking a stress scenario to the probability of systemic risk states.

That seafaring was fundamental to Roman prosperity in the eastern Mediterranean is beyond doubt, but a tendency by scholars to focus on the grandest long-distance movements between major cities has obscured the finer and varied contours of maritime interaction. This book offers a nuanced archaeological analysis of maritime economy and connectivity in the Roman east. Drawing together maritime landscape studies and network analysis, Roman Seas takes a bottom-up view of the diverse socioeconomic conditions and seafaring logistics that generated multiple structures and scales of interaction. The material record of shipwrecks and ports along a vital corridor from the southeast Aegean across the northeast Mediterranean provides a case study of regional exchange and communication based on routine sails between simple coastal harbors. Rather than a single well-integrated and persistent Mediterranean network, multiple discrete and evolving regional and interregional systems emerge.

This analysis sheds light on the cadence of economic life along the coast, the development of market institutions, and the regional continuities that underpinned integration-despite imperial fragmentation-between the second century BCE and the seventh century CE. Roman Seas advances a new approach to the synthesis of shipwreck and other maritime archaeological and historical economic data, as well as a path through the stark dichotomies-either big commercial voyages or small-scale cabotage-that inform most paradigms of Roman connectivity and trade. The result is a unique perspective on ancient Mediterranean trade, seafaring, cultural interaction, and coastal life.