1,140 research outputs found
Regional geochemical reconnaissance of Eastern Sierra Leone
Imperial Users onl
Introduction: The International Diffusion of Liberalism
Political scientists, sociologists, and economists have all sought to analyze the spread of economic and political liberalism across countries in recent decades. This article documents this diffusion of liberal policies and politics and proposes four distinct theories to explain how the prior choices of some countries and international actors affect the subsequent behavior of others: coercion, competition, learning, and emulation. These theories are explored empirically in the symposium articles that follow. The goal of the symposium is to bring quite different and often isolated schools of thought into contact and communication with one another, and to define common metrics by which we can judge the utility of the contending approaches to diffusion across different policy domains. For helpful comments on an earlier draft of this article, the authors wish to thank Barry Eichengreen, Lisa Martin, and John Meyer. Nancy Brune and Alexander Noonan provided excellent research assistance. The authors also wish to acknowledge and thank the Yale Center for International and Area Studies, the UCLA International Institute, and the Weatherhead Center for International Affairs at Harvard University for funding conferences at which this collection of symposium papers were discussed.Governmen
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Conclusion
The diffusion of markets and democracy around the world was a defining feature of the late twentieth century. Many social scientists view this economic and political liberalization as the product of independent choices by national governments. This book argues that policy and political changes were influenced heavily by prior actions of external actors: not just other governments, but international organizations and communities of experts. Drawing together insights from economics, sociology, political science and international relations, the contributors focus on four mechanisms by which markets and democracy have diffused through interdependent decision-making: coercion and the impact of powerful countries and international actors; economic competition for markets and investment; learning from experiences of other countries; and emulation among countries. These mechanisms are tested empirically using sophisticated quantitative techniques in areas as diverse as capital account and investment policy, human rights and democratization, and government downsizing, privatization and taxation.GovernmentSociolog
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Introduction: The Diffusion of Liberalization
The worldwide spread of economic and political liberalism was one of the defining features of the late twentieth century. Free-market oriented economic reforms – macroeconomic stabilization, liberalization of foreign economic policies, privatization, and deregulation – took root in many parts of the world. At more or less the same time, a "third wave" of democratization and liberal constitutionalism washed over much of the globe. Most economists believe the gains to developing countries from the liberalization of economic policies to be in the hundreds of billions of dollars. But they also acknowledge the instability and human insecurity sometimes left in liberalization’s wake.GovernmentSociolog
Government Partisanship, Labor Organization, and Macroeconomic Performance: A Corrigendum
Alvarez, Garrett and Lange (1991) used cross-national data panel data on the Organization for Economic Coordination and Development nations to show that countries with left governments and encompassing labor movements enjoyed superior economic performance. Here we show that the standard errors reported in that article are incorrect. Reestimation of the model using ordinary least squares and robust standard errors upholds the major finding of Alvarez, Garrett and Lange, regarding the political and institutional causes of economic growth but leaves the findings for unemployment and inflation open to question. We show that the model used by Alvarez, Garrett and Lange, feasible generalized least squares, cannot produce standard errors when the number of countries analyzed exceeds the length of the time period under analysis. Also, we argue that ordinary least squares with robust standard errors is superior to feasible generalized least square for typical cross-national panel studies
An Intensity Mapping Detection of Aggregate CO Line Emission at 3 mm
We present a detection of molecular gas emission at using the
technique of line intensity mapping. We make use of a pair of 3 mm
interferometric data sets, the first from the ALMA Spectroscopic Survey in the
Hubble Ultra Deep Field (ASPECS), and the second from a series of Atacama
Compact Array (ACA) observations conducted between 2016 and 2018, targeting the
COSMOS field. At 100 GHz, we measure non-zero power at 97.8% and 99.9%
confidence in the ACA and ALMA data sets, respectively. In the joint result, we
reject the zero-power hypothesis at 99.99% confidence, finding
.
After accounting for sample variance effects, the estimated spectral shot power
is $\tilde{I}^{2}_{s}(\nu)=1010_{-390}^{+550}\ \mu\textrm{K}^2\ \textrm{Hz}\
\textrm{sr}120_{-40}^{+80}\ \mu\textrm{K}^2\ h^{-3}\,\textrm{Mpc}^{3}200^{+120}_{-70}\ \mu\textrm{K}^2\ h^{-3}\,\textrm{Mpc}^{3}90^{+70}_{-40}\ \mu\textrm{K}^2\ h^{-3}\,\textrm{Mpc}^{3}z=1.3z=2.5z=3.6\alpha_{\rm CO}=3.6\ M_{\odot}\ (\textrm{K}\ \textrm{km}\ \textrm{s}^{-1}\
\textrm{pc}^{2})^{-1}\rho_{\textrm{H}_2}(z)\sim 10^{8}\ M_{\odot}\ \textrm{Mpc}^{-3}z=1-3$.Comment: 25 pages, 12 figures, 6 tables, 2 appendices. Accepted for
publication in Ap
The Allen Telescope Array Twenty-centimeter Survey -- A 700-Square-Degree, Multi-Epoch Radio Dataset -- II: Individual Epoch Transient Statistics
We present our second paper on the Allen Telescope Array Twenty-centimeter
Survey (ATATS), a multi-epoch, ~700 sq. deg. radio image and catalog at 1.4
GHz. The survey is designed to detect rare, bright transients as well as to
commission the ATA's wide-field survey capabilities. ATATS explores the
challenges of multi-epoch transient and variable source surveys in the domain
of dynamic range limits and changing (u,v) coverage.
Here we present images made using data from the individual epochs, as well as
a revised image combining data from all ATATS epochs. The combined image has
RMS noise 3.96 mJy / beam, with a circular beam of 150 arcsec FWHM. The
catalog, generated using a false detection rate algorithm, contains 4984
sources, and is >90% complete to 37.9 mJy. The catalogs generated from snapshot
images of the individual epochs contain between 1170 and 2019 sources over the
564 sq. deg. area in common to all epochs. The 90% completeness limits of the
single epoch catalogs range from 98.6 to 232 mJy.
We compare the catalog generated from the combined image to those from
individual epochs, and from the NRAO VLA Sky Survey (NVSS), a legacy survey at
the same frequency. We are able to place new constraints on the transient
population: fewer than 6e-4 transients / sq. deg., for transients brighter than
350 mJy with characteristic timescales of minutes to days. This strongly rules
out an astronomical origin for the ~1 Jy sources reported by Matsumura et al.
(2009), based on their stated rate of 3.1e-3 / sq. deg.Comment: 28 pages, 12 figures, ApJ accepte
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