4,507 research outputs found
Energy transport and fluctuations in small conductors
The Landauer-B\"uttiker formalism provides a simple and insightful way for
investigating many phenomena in mesoscopic physics. By this approach we derive
general formulas for the energy properties and apply them to the basic setups.
Of particular interest are the noise properties. We show that energy current
fluctuations can be induced by zero-point fluctuations and we discuss the
implications of this result.Comment: Revised and corrected versio
Economic Agents, Ethics and International Economic Organisations
The last sixty years have seen international economic organisations maintain a position at the forefront of promoting economic growth and socioeconomic development. These organisations have not achieved as much against certain benchmarks, and several observers have accused them of being unqualified to meet the needs of the poor, and even found them guilty of something worse, such as famine and disease. Although these organisations have organisational behaviour and skills, many of their funded projects lack forcefulness to such an extent that they should only be answerable through achieving certain economic facts by way of ethics and morals. We design ethics and morals as two interconnected concepts, and the rationale that binds all economic agents to their respective obligations must be interpreted by effective courses of action dictated by economic realities.ethical and moral codes, international organisations, national agents, political economy
Consecutive Patterns in Inversion Sequences
An inversion sequence of length is an integer sequence such that for each .
Corteel--Martinez--Savage--Weselcouch and Mansour--Shattuck began the study of
patterns in inversion sequences, focusing on the enumeration of those that
avoid classical patterns of length 3. We initiate an analogous systematic study
of consecutive patterns in inversion sequences, namely patterns whose entries
are required to occur in adjacent positions. We enumerate inversion sequences
that avoid consecutive patterns of length 3, and generalize some results to
patterns of arbitrary length. Additionally, we study the notion of Wilf
equivalence of consecutive patterns in inversion sequences, as well as
generalizations of this notion analogous to those studied for permutation
patterns. We classify patterns of length up to 4 according to the corresponding
Wilf equivalence relations.Comment: Final version to appear in DMTC
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Economics in transition in Eastern Europe and the function of the Bruxelles consensus
In today's fast evolving Central and Eastern Europe, economic perspectives, especially European Union perspectives are indispensable to the success of the transformation process initiated in the late 1980s and early 1990s. Based on our research output, this thesis offers many such perspectives that can help understand the logic of the transformation and the subsequent business done by national and international enterprises. We have interwoven many information-rich threads of transformation principles with banking, dynamic cultural factors and tax policy that influence these new market-economy countries. We observe the role and the process of financial institutions and also consider the impact that information technology exerts on these economies and thus concluding that the significance of culture development and the betterment of the population are the central driving force within a wider Europe.
This thesis offers fundamental notions that influence cross-cultural interactions also, providing a concrete basis for understanding the influence of Central and Eastern European countries on the European Union's political choices and vice versa. We examine the transformation and its significance, paradoxes and the interplay of economic approaches and entrepreneurship. In the specific, we look at how the European Union policy towards these countries evolved, suggesting that a trend towards a Bruxelles Consensus is the specific outcome of the European Union's attitudes towards Central and Eastern Europe. An extended evaluation of the consequences for all of us will also emerge as our approach has been that to present all these aspects in a way that inspire understanding of basic governing issues and expectations concerning the future on Central and Eastern Europe in the ever-growing European Union
Putin's and Russian-led Eurasian Economic Union: A hybrid half-economics and half-political "Janus Bifrons"
Abstract The Eurasian Economic Union is an institution formalized in January 2015 for the purpose of regional economic integration; it includes five countries: Russia, Kazakhstan, Belarus, Armenia, and Kyrgyzstan, and may include Mongolia and Tajikistan in the future. With a GDP of 1.3 trillion in 2014, and population of almost 200 million as of 2016, the EEAU could represent a geopolitical success that supports both Putin's ambitious political agenda and the Union's economic prospects. Although the efforts of this Union are ongoing and long-term success is not certain, the Russia-led Eurasian Economic Union can be considered a hybrid half-economics and half-political "Janus Bifrons" that serves as a powerful illustration of what Putin envisions for the post-Soviet space. Despite promising steps so far, more should be done toward the achievement of economic development and balanced opportunity for all Eurasian countries. Russia's longstanding role within the Union, as well as its power and political motivations, are all considerations that must be accounted for
Deterministic constant-temperature dynamics for dissipative quantum systems
A novel method is introduced in order to treat the dissipative dynamics of
quantum systems interacting with a bath of classical degrees of freedom. The
method is based upon an extension of the Nos\`e-Hoover chain (constant
temperature) dynamics to quantum-classical systems. Both adiabatic and
nonadiabatic numerical calculations on the relaxation dynamics of the
spin-boson model show that the quantum-classical Nos\`e-Hoover chain dynamics
represents the thermal noise of the bath in an accurate and simple way.
Numerical comparisons, both with the constant energy calculation and with the
quantum-classical Brownian motion treatment of the bath, show that the
quantum-classical Nos\`e-Hoover Chain dynamics can be used to introduce
dissipation in the evolution of a quantum subsystem even with just one degree
of freedom for the bath. The algorithm can be computationally advantageous in
modeling, within computer simulation, the dynamics of a quantum subsystem
interacting with complex molecular environments.Comment: Revised versio
Towards digital society management and 'capitalism 4.0' in contemporary Russia
AbstractConceptualizing the complexities of the Russian political economy strikingly illustrates the challenging but essential role of the State in the new process of capitalist reforms initiated in the 1990s. A missing ingredient in this discourse has been considering the extraordinary impact technology has on society and how it affects the process. Accordingly, this paper focuses on the current development of culturally unique capitalist theory in Russia, together with the practical application of proven quantitative landmarks and policy implications for managing digital society's development to optimize capitalism in Russia. The paper performs a quantitative analysis of the considerable influence that the digital society has on Russian capitalism and how the latter can be systemically optimized through the former's development. This contribution's originality lies in its consideration of the consequences of digital culture on the unique model of capitalism shaping contemporary Russia. Currently, Russia is implementing a particular and unique model of capitalism model where the digital society's influence is limited and contradictory. We argue that the Russian model of capitalism could experience rapid development in the foreseeable future with effective digital society management
The ongoing contributions of spin-off research and practice to understanding corporate restructuring and wealth creation: $100 billion in 1 decade
AbstractSince the 1980s, analysis of spin-offs has become a key line of inquiry in corporate finance. This paper reviews the theory and empirical research papers about spin-off restructuring and measures the monetary value created by spin-offs. First, we document the valuation impact of spin-offs for the divesting firms and then examine such subtleties as the interesting (positive) ex-dividend day price impact and the myriad other details associated with these transactions. This study provides a review of the now extensive research into spin-off divestitures. It looks into equity price reactions around the announcements of 249 voluntary spin-offs undertaken by US public companies over the interval 2007–2017. The abnormal returns associated with recent spin-off divestitures are of the same order of magnitude as those from the earlier papers, showing the sustained statistical significance and new economic materiality measures. With more firms undertaking spin-offs and the positive abnormal returns continuing to be substantial, the clear implication is that the overall monetary value creation resulting from spin-offs has increased markedly. Finally, and in a first for spin-off research, this paper calibrates the monetary value created by spin-offs despite the voluminous research of the topic. It establishes that spin-offs create large monetary value increments for divesting a firm's stockholders—almost $100 billion in the interval 2007–2017
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