Long-run growth empirics and new challenges for unified theory

2013 ◽  
Vol 45 (28) ◽  
pp. 3973-3987 ◽  
Author(s):  
David Greasley ◽  
Jakob B. Madsen ◽  
Mark E. Wohar
Keyword(s):  
Unified Theory ◽  
Long Run ◽  
New Challenges ◽  
Growth Empirics

Intercity Trade and Long-Run Urban Growth

2012 ◽  
Author(s):  
Yannis M. Ioannides
Keyword(s):  
Economic Integration ◽  
Urban Growth ◽  
Physical Capital ◽  
The United States ◽  
Type Model ◽  
Urban Structure ◽  
Productive Capacity ◽  
Long Run ◽  
System Of Cities ◽  
Growth Empirics

This chapter examines the link between intercity trade and long-run urban growth. It begins by introducing a Ventura-type model of the growth of isolated cities that allows for investment in physical capital and in urban transportation as ways to increase urban productive capacity. It then considers a sample of growth empirics for the United States, European, and Brazilian systems of cities with an emphasis on transportation improvements and factor accumulation. It also describes a model of economic growth in a system of cities that leads to a precise description of the law of motion in dynamic settings of either autarkic cities or specialized cities engaged in intercity trade. Finally, it explores the interrelationships between economic integration, urban specialization, and growth; the Rossi-Hansberg–Wright model of urban structure and its evolution; empirical aspects of urban structure and long-run urban growth; and sequential urban growth and decay.

scholarly journals The Return of “Patrimonial Capitalism”: A Review of Thomas Piketty's Capital in the Twenty-First Century

2014 ◽  
Vol 52 (2) ◽  
pp. 519-534 ◽  
Author(s):  
Branko Milanovic
Keyword(s):  
Economic Growth ◽  
Historical Data ◽  
First Century ◽  
Data Series ◽  
Unified Theory ◽  
Income Distributions ◽  
Long Run ◽  
Economic Divergence ◽  
Twenty First Century ◽  
Thomas Piketty

Capital in the Twenty-First Century by Thomas Piketty provides a unified theory of the functioning of the capitalist economy by linking theories of economic growth and functional and personal income distributions. It argues, based on the long-run historical data series, that the forces of economic divergence (including rising income inequality) tend to dominate in capitalism. It regards the twentieth century as an exception to this rule and proposes policies that would make capitalism sustainable in the twenty-first century. (JEL D31, D33, E25, N10, N30, P16)

scholarly journals Improving Software Middleboxes and Datacenter Task Schedulers

2019 ◽  
Author(s):  
Hugo Sadok ◽  
Miguel Elias Mitre Campista ◽  
Luis Henrique Maciel Kosmalski Costa
Keyword(s):  
Waiting Time ◽  
Load Balance ◽  
Utilization Efficiency ◽  
High Demand ◽  
Scheduling Policy ◽  
Long Run ◽  
Systems Software ◽  
Master's Thesis ◽  
New Challenges ◽  
Flow States

Shared systems have contributed to the popularity of many technologies. However, these systems often confront a common challenge: to ensure that resources are fairly divided without compromising utilization efficiency. In this master's thesis we look at this problem in two distinct systems---software middleboxes and datacenter task schedulers. We first present Sprayer, a system that uses packet spraying to load balance packets to cores in software middleboxes. Our design eliminates the imbalance problems of per-flow solutions and addresses the new challenges of handling shared flow states that come with packet spraying. Then, we present Stateful Dominant Resource Fairness (SDRF), a task scheduling policy for datacenters that looks at past allocations and enforces fairness in the long run. SDRF reduces users' waiting time on average and improves fairness by increasing the number of completed tasks for users with lower demands, with small impact on high-demand users.

The Return of “Patrimonial Capitalism”: A Reviewof Thomas Piketty’s Capital in the Twenty-First Century

2014 ◽  
pp. 127-144
Author(s):  
B. Milanovic
Keyword(s):  
Economic Growth ◽  
Historical Data ◽  
First Century ◽  
Data Series ◽  
Unified Theory ◽  
Income Distributions ◽  
Long Run ◽  
Economic Divergence ◽  
Twenty First Century ◽  
Thomas Piketty

Capital in the Twenty-First Century by Thomas Piketty - one of the most widely discussed economic books in the last decade - provides a unified theory of the functioning of the capitalist economy by linking theories of economic growth and functional and personal income distributions. It argues, based on the long-run historical data series, that the forces of economic divergence (including rising income inequality) tend to dominate in capitalism. It regards the twentieth century as an exception to this rule and proposes policies that would make capitalism sustainable in the twenty-first century.

scholarly journals Improving Software Middleboxes and Datacenter Task Schedulers

2019 ◽  
Author(s):  
Hugo Sadok ◽  
Miguel Elias M. Campista ◽  
Luis Henrique M. K. Costa
Keyword(s):  
Waiting Time ◽  
Load Balance ◽  
Utilization Efficiency ◽  
High Demand ◽  
Scheduling Policy ◽  
Long Run ◽  
Systems Software ◽  
Master's Thesis ◽  
New Challenges ◽  
Flow States

Shared systems have contributed to the popularity ofmany technolo- gies. However, these systems often confront a common challenge: to ensure that resources are fairly divided without compromising utilization efficiency. In this master’s thesis we look at this problem in two distinct systems—software mid- dleboxes and datacenter task schedulers. We first present Sprayer, a system that uses packet spraying to load balance packets to cores in software middleboxes. Our design eliminates the imbalance problems of per-flow solutions and ad- dresses the new challenges ofhandling shared flow states that come with packet spraying. Then, we present Stateful Dominant Resource Fairness (SDRF), a task scheduling policy for datacenters that looks at past allocations and en- forces fairness in the long run. SDRF reduces users’ waiting time on average and improves fairness by increasing the number of completed tasks for users with lower demands, with small impact on high-demand users

scholarly journals Inflation and Unemployment in the Long Run

2011 ◽  
Vol 101 (1) ◽  
pp. 371-398 ◽  
Author(s):  
Aleksander Berentsen ◽  
Guido Menzio ◽  
Randall Wright
Keyword(s):  
Labor Market ◽  
Interest Rates ◽  
Ad Hoc ◽  
Monetary Theory ◽  
Unified Theory ◽  
Low Frequencies ◽  
Unemployment Rates ◽  
Long Run ◽  
Sizable Fraction ◽  
Bargaining Approach

We study the long-run relation between money (inflation or interest rates) and unemployment. We document positive relationships between these variables at low frequencies. We develop a framework where money and unemployment are modeled using explicit microfoundations, providing a unified theory to analyze labor and goods markets. We calibrate the model and ask how monetary factors account for labor market behavior. We can account for a sizable fraction of the increase in unemployment rates during the 1970s. We show how it matters whether one uses monetary theory based on the search-and-bargaining approach or on an ad hoc cash-in-advance constraint. (JEL E24, E31, E41, E43, E52)

scholarly journals THE GREEN ECONOMY - SAVING THE ENVIRONMENT?

2021 ◽  
Author(s):  
Vaduva Corina ◽  
Keyword(s):  
Climate Change ◽  
Sustainable Development ◽  
Economic Development ◽  
Economic System ◽  
National Economy ◽  
Green Economy ◽  
Long Run ◽  
New Challenges ◽  
Points Of View

The future of the national economy is based on the green economy because after the multitude of discussions it was concluded that this concept is essential in order to achieve the proposed objectives. The "Green economy" is meant to foster sustainable development, especially in the long run, by creating an enabling environment through research, innovation and a knowledge-driven concern. At the basis of the transition to a "green economy" is the practice of a typology of economy based exclusively on policies and investments, the latter linking economic development, health, biodiversity and last but not least climate change, both long-term and long-term medium. As at present the practiced economic system is in full collapse, it was decided that it is necessary to rethink it from all points of view. So, the transition to the green economy is considered as the main solution that aims to adapt the economy and with it its evolution and new challenges that arise globally, by increasingly integrating the environment into the paradigm that refers to lasting development.

New challenges to image processing posed by cryo-Electron microscopy of single particles

1991 ◽  
Vol 49 ◽  
pp. 422-423
Author(s):  
Joachim Frank
Keyword(s):  
Electron Microscopy ◽  
Phase Contrast ◽  
Particle Orientation ◽  
Single Particles ◽  
Contrast Transfer Function ◽  
Virtual Absence ◽  
Cryo Electron Microscopy ◽  
Spatial Frequencies ◽  
New Challenges ◽  
Particle Images

Compared with images of negatively stained single particle specimens, those obtained by cryo-electron microscopy have the following new features: (a) higher “signal” variability due to a higher variability of particle orientation; (b) reduced signal/noise ratio (S/N); (c) virtual absence of low-spatial-frequency information related to elastic scattering, due to the properties of the phase contrast transfer function (PCTF); and (d) reduced resolution due to the efforts of the microscopist to boost the PCTF at low spatial frequencies, in his attempt to obtain recognizable particle images.

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