In this paper new forms of computer simulation of non‐linear phenomena in Newtonian mechanics are developed. Energy conservation of the discrete formulations is established and…
Abstract
In this paper new forms of computer simulation of non‐linear phenomena in Newtonian mechanics are developed. Energy conservation of the discrete formulations is established and applications are made to the studies of non‐linear oscillation, planetary orbits, non‐degenerate three‐body problems, and non‐linear string vibrations.
Ernesto D’Avanzo, Giovanni Pilato and Miltiadis Lytras
An ever-growing body of knowledge demonstrates the correlation among real-world phenomena and search query data issued on Google, as showed in the literature survey introduced in…
Abstract
Purpose
An ever-growing body of knowledge demonstrates the correlation among real-world phenomena and search query data issued on Google, as showed in the literature survey introduced in the following. The purpose of this paper is to introduce a pipeline, implemented as a web service, which, starting with recent Google Trends, allows a decision maker to monitor Twitter’s sentiment regarding these trends, enabling users to choose geographic areas for their monitors. In addition to the positive/negative sentiments about Google Trends, the pipeline offers the ability to view, on the same dashboard, the emotions that Google Trends triggers in the Twitter population. Such a set of tools, allows, as a whole, monitoring real-time on Twitter the feelings about Google Trends that would otherwise only fall into search statistics, even if useful. As a whole, the pipeline has no claim of prediction over the trends it tracks. Instead, it aims to provide a user with guidance about Google Trends, which, as the scientific literature demonstrates, is related to many real-world phenomena (e.g. epidemiology, economy, political science).
Design/methodology/approach
The proposed experimental framework allows the integration of Google search query data and Twitter social data. As new trends emerge in Google searches, the pipeline interrogates Twitter to track, also geographically, the feelings and emotions of Twitter users about new trends. The core of the pipeline is represented by a sentiment analysis framework that make use of a Bayesian machine learning device exploiting deep natural language processing modules to assign emotions and sentiment orientations to a collection of tweets geolocalized on the microblogging platform. The pipeline is accessible as a web service for any user authorized with credentials.
Findings
The employment of the pipeline for three different monitoring task (i.e. consumer electronics, healthcare, and politics) shows the plausibility of the proposed approach in order to measure social media sentiments and emotions concerning the trends emerged on Google searches.
Originality/value
The proposed approach aims to bridge the gap among Google search query data and sentiments that emerge on Twitter about these trends.
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Keywords
Mikel Larreina and Leire Gartzia
In the last decades, many of the most talented and promising young graduates in the developed economies have joined the financial industry. Simultaneously, ill-designed…
Abstract
In the last decades, many of the most talented and promising young graduates in the developed economies have joined the financial industry. Simultaneously, ill-designed incentives’ schemes have favored the development of a culture in which excessive greed, free-riders’ behavior, unreasonable appetite for risk, and short-term decision making have endangered the economy and, potentially, have laid the foundations for financial, economic, social, and environmental crises.
In this chapter, we review current challenges in the financial industry from the lens of human and social capital. We examine some of the factors that allowed unethical behavior and a short-term financial focus in the financial sector, examining how compensation and an extremely competitive culture became key elements that favored greedy and manipulative behavior and ultimately generated socially harmful human and social capital in the financial sector. Finally, we discuss the emergence of a number of game-changers (namely, Brexit, FinTech, the growing relevance of ethical standards, and the increasing participation of women and millennials in the industry) that might represent potential promotors of change and help restructure and reshape the financial industry.
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At what point in the tepid recovery from the global financial crisis should the Fed take a major step in normalizing U.S. monetary policy by greatly reducing its holdings of U.S…
Abstract
At what point in the tepid recovery from the global financial crisis should the Fed take a major step in normalizing U.S. monetary policy by greatly reducing its holdings of U.S. Treasury bonds? Federal Reserve Board Chairman Ben Bernanke faced this question in Spring 2012, even as he was concerned that the U.S. economy was on weaker footing than many believed. Suitable for both core and elective MBA courses in global financial markets and international finance, this case examines the risks associated with a policy some would consider monetizing the budget deficit. Students consider the factors behind the current and prospective levels of U.S. long-term interest rates from Bernanke's perspective.
Details
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Keywords
Mounting questions over Fed independence.
Details
DOI: 10.1108/OXAN-DB239395
ISSN: 2633-304X
Keywords
Geographic
Topical
In February 2018, Jerome Powell had taken over as chair of the FOMC. At first glance, the macroeconomic conditions inherited by Powell appeared favorable for continued stability…
Abstract
In February 2018, Jerome Powell had taken over as chair of the FOMC. At first glance, the macroeconomic conditions inherited by Powell appeared favorable for continued stability: unemployment and inflation were low, and the economy had been steadily growing for nearly a decade. Yet despite the appearance of stability, the economy faced significant risks that required the Federal Reserve's attention. Was an uptick in inflation imminent, and if so, should Powell raise rates to limit any inflationary pressure? Or was the economy still operating below capacity, and if so, should the Federal Reserve take a more accommodative stance? To gain perspective, Powell needed to look back at the past fifty years of monetary policy in the United States.
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Keywords
The Bureau of Economics in the Federal Trade Commission has a three-part role in the Agency and the strength of its functions changed over time depending on the preferences and…
Abstract
The Bureau of Economics in the Federal Trade Commission has a three-part role in the Agency and the strength of its functions changed over time depending on the preferences and ideology of the FTC’s leaders, developments in the field of economics, and the tenor of the times. The over-riding current role is to provide well considered, unbiased economic advice regarding antitrust and consumer protection law enforcement cases to the legal staff and the Commission. The second role, which long ago was primary, is to provide reports on investigations of various industries to the public and public officials. This role was more recently called research or “policy R&D”. A third role is to advocate for competition and markets both domestically and internationally. As a practical matter, the provision of economic advice to the FTC and to the legal staff has required that the economists wear “two hats,” helping the legal staff investigate cases and provide evidence to support law enforcement cases while also providing advice to the legal bureaus and to the Commission on which cases to pursue (thus providing “a second set of eyes” to evaluate cases). There is sometimes a tension in those functions because building a case is not the same as evaluating a case. Economists and the Bureau of Economics have provided such services to the FTC for over 100 years proving that a sub-organization can survive while playing roles that sometimes conflict. Such a life is not, however, always easy or fun.
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The case has been used in a first-year required course called Global Economies and Markets in a module on monetary policy. On October 24, 2005, President Bush nominated Ben S…
Abstract
The case has been used in a first-year required course called Global Economies and Markets in a module on monetary policy. On October 24, 2005, President Bush nominated Ben S. Bernanke to be chairman of the board of governors of the Federal Reserve System for a term of four years along with a 14-year term on the board of governors. With the U.S. Senate confirmation widely anticipated, Bernanke was expected to take over stewardship of the U.S. monetary policy from Chairman Alan Greenspan when he retired in January 2006. While the U.S. economy was in good shape at the end of 2005, Bernanke had to prepare to deal with two challenges when charting a course for managing U.S. monetary policy. First, the sharp rise in energy prices that began in 2002 had the potential to bring back the specter of inflation and dampen desired consumer and business spending. Second, the housing boom could turn into a housing bust, throwing the mortgage industry into turmoil and weakening consumer business confidence. There was also the possibility that the housing bust could affect broader financial markets. Bernanke had to consider his options for dealing with contingencies in the not-so-distant future.
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Roy E. Allen and Donald Snyder
The purpose of this paper is to expand understanding of the current global financial crisis in light of other large‐scale financial crises.
Abstract
Purpose
The purpose of this paper is to expand understanding of the current global financial crisis in light of other large‐scale financial crises.
Design/methodology/approach
The phenomenon of large‐scale financial crisis has not been modeled well by neo‐classical general equilibrium approaches; the paper explores whether evolutionary and complex systems approaches might be more useful. Previous empirical work and current data are coalesced to identify fundamental drivers of the boom and bust phases of the current crisis.
Findings
Many features of financial crisis occur naturally in evolutionary and complex systems. The boom phase leading to this current crisis (early 1980s through 2006) and bust phase (2007‐) are associated with structural changes in institutions, technologies, monetary processes, i.e. changing “meso structures”. Increasingly, purely financial constructs and processes are dominant infrastructures within the global economy.
Research limitations/implications
Rigorous analytical predictions of financial crisis variables are at present not possible using evolutionary and complex systems approaches; however, such systems can be fruitfully studied through simulation methods and certain types of econometric modeling.
Practical implications
Common patterns in large‐scale financial crises might be better anticipated and guarded against. Better money‐liquidity supply decisions on the part of official institutions might help prevent economy‐wide money‐liquidity crises from turning into systemic solvency crises.
Originality/value
Scholars, policymakers, and practitioners might appreciate the more comprehensive evolutionary and complex systems framework and see that it suggests a new political economy of financial crisis. Despite a huge scholarly literature (organized recently as first‐ second‐ and third‐generation models of financial crises) and a flurry of topical essays in recent months, systemic understanding has been lacking.