scholarly journals Adaptation strategies and collective dynamics of extraction in networked commons of bistable resources

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Andrew Schauf ◽  
Poong Oh
Keyword(s):  
Empirical Studies ◽  
Common Pool Resources ◽  
Adaptation Strategies ◽  
Resource Extraction ◽  
Individual Choice ◽  
Short Term ◽  
Heterogeneous Agent ◽  
Low Degree ◽  
Networked Games ◽  
Resource Networks

AbstractWhen populations share common-pool resources (CPRs), individuals decide how much effort to invest towards resource extraction and how to allocate this effort among available resources. We investigate these dual aspects of individual choice in networked games where resources undergo regime shifts between discrete quality states (viable or depleted) depending on collective extraction levels. We study the patterns of extraction that emerge on various network types when agents are free to vary extraction from each CPR separately to maximize their short-term payoffs. Using these results as a basis for comparison, we then investigate how results are altered if agents fix one aspect of adaptation (magnitude or allocation) while letting the other vary. We consider two constrained adaptation strategies: uniform adaptation, whereby agents adjust their extraction levels from all CPRs by the same amount, and reallocation, whereby agents selectively shift effort from lower- to higher-quality resources. A preference for uniform adaptation increases collective wealth on degree-heterogeneous agent-resource networks. Further, low-degree agents retain preferences for these constrained strategies under reinforcement learning. Empirical studies have indicated that some CPR appropriators ignore—while others emphasize—allocation aspects of adaptation; our results demonstrate that structural patterns of resource access can determine which behavior is more advantageous.

scholarly journals Short-term load forecasting using Theta method

2019 ◽  
Vol 84 ◽  
pp. 01004 ◽  
Author(s):  
Grzegorz Dudek
Keyword(s):  
Empirical Studies ◽  
Load Forecasting ◽  
Seasonal Cycles ◽  
Short Term ◽  
Forecasting Accuracy ◽  
Forecasting Methods ◽  
Short Term Load Forecasting ◽  
Data Definition ◽  
System Data ◽  
Theta Method

The Theta method attracted the attention of researchers and practitioners in recent years due to its simplicity and superior forecasting accuracy. Its performance has been confirmed by many empirical studies as well as forecasting competitions. In this article the Theta method is tested in short-term load forecasting problem. The load time series expressing multiple seasonal cycles is decomposed in different ways to simplify the forecasting problem. Four variants of input data definition are considered. The standard Theta method is uses as well as the dynamic optimised Theta model proposed recently. The performances of the Theta models are demonstrated through an empirical application using real power system data and compared with other popular forecasting methods.

A Note Concerning the Dynamics of Government Bond Yields

2021 ◽  
pp. 056943452098827
Author(s):  
Tanweer Akram
Keyword(s):  
Interest Rate ◽  
Financial Markets ◽  
Yield Curve ◽  
Empirical Studies ◽  
State Theory ◽  
Government Bond ◽  
Bond Yields ◽  
Short Term ◽  
Government Bonds

Keynes argued that the central bank can influence the long-term interest rate on government bonds and the shape of the yield curve mainly through the short-term interest rate. Several recent empirical studies that examine the dynamics of government bond yields not only substantiate Keynes’s view that the long-term interest rate responds markedly to the short-term interest rate but also have relevance for macroeconomic theory and policy. This article relates Keynes’s discussions of money, the state theory of money, financial markets, investors’ expectations, uncertainty, and liquidity preference to the dynamics of government bond yields for countries with monetary sovereignty. Investors’ psychology, herding behavior in financial markets, and uncertainty about the future reinforce the effects of the short-term interest rate and the central bank’s monetary policy actions on the long-term interest rate. JEL classifications: E12; E40; E43; E50; E58; E60; F30; G10; G12; H62; H63

scholarly journals Enhancing Nature Connection and Positive Affect in Children through Mindful Engagement with Natural Environments

2021 ◽  
Vol 18 (9) ◽  
pp. 4785
Author(s):  
Alexia Barrable ◽  
David Booth ◽  
Dylan Adams ◽  
Gary Beauchamp
Keyword(s):  
Negative Affect ◽  
Positive Affect ◽  
Positive Relationship ◽  
Nature Reserve ◽  
Empirical Studies ◽  
Medium Effect ◽  
Natural Environments ◽  
Short Term ◽  
Nature Connection ◽  
Mindful Engagement

Nature connection, which describes a positive relationship between humans and the rest of nature, has been recognised as a worthwhile goal of all education. Given its association with wellbeing, as well as the fact that it can predict ecological behaviours in children, there have been several calls for it to become central to environmental education, and an important tool in tackling climate change. Previous research has reported the success of short-term interventions in increasing nature connection in children, but to date no empirical studies have looked at how mindful engagement with nature can promote both nature connection and positive affect. This study took place in a nature reserve in Wales and included n = 74 children, aged 9–10, who took part in three mindful activities. Pre- and post- measures included nature connection and positive/negative affect. Analysis showed a significant small to medium effect of the activity on nature connection. Moreover, positive affect significantly increased post-activity, while negative affect showed a small decrease.

scholarly journals Post-Acquisition Performance of Emerging Market Firms: A Multi-Dimensional Analysis of Acquisitions in India

2021 ◽  
Vol 14 (12) ◽  
pp. 567
Author(s):  
Arindam Das
Keyword(s):  
Structural Equation ◽  
Emerging Market ◽  
Empirical Studies ◽  
Short Term ◽  
Firm Level ◽  
Acquisition Performance ◽  
Long Term Performance ◽  
Term Performance ◽  
A Performance

M&A performance is a multifaceted, compound construct with no overarching factor that captures all different dimensions. This paper examines the concept of acquisition performance and proposes a model that links firm-level factors and transaction parameters with firms’ short-term and long-term performance, extending to financial-, market- and innovation measures. Building on past empirical studies on the influence of various factors on M&A performance, a multi-dimensional structural equation model has been developed and it has been tested with a dataset on acquisitions in the Indian technology sector over a period of ten years. The results suggest that: (a) smaller acquirers with higher book value and leveraged firms demonstrate better long-term performance; (b) contrary to established understanding, short-term market returns are not influenced by deal parameters; (c) majority stake purchases show relatively lesser gains—suggesting the possible presence of post-acquisition integration issues and, (d) acquirers with high intangible assets continue to do well on innovation performance post-acquisition. By indicating situations and conditions under which an acquisition would potentially lead to a performance gain for the acquirer, these results provide significant insight to practitioners pursuing M&As for growth opportunities.

scholarly journals Kyrgyz Youth in the Moscow Agglomeration: Adaptation Strategies

2021 ◽  
Vol 20 (3) ◽  
pp. 135-145
Author(s):  
Galina I. Osadchaya ◽  
◽  
Irina V. Leskova ◽  
Tatyana N. Yudina ◽  
◽  
...  
Keyword(s):  
Empirical Studies ◽  
Adaptation Strategies ◽  
Host Community ◽  
Social Adaptation ◽  
Scientific Article ◽  
Semantic Field ◽  
Basic Principles ◽  
Acculturation Process ◽  
Moscow Agglomeration ◽  
Basic Ideas

The scientific article, based on the basic ideas of sociological theories about the adaptation of a person to a changing socio-cultural environment, raises the problem of building individual and group adaptation strategies by Kyrgyz young migrants upon arrival in the Moscow agglomeration. The semantic field of the studied phenomenon of social adaptation covers such conceptual strategies as accommodation, acculturation, integration. The basic principles of sociological theories in the author’s interpretation of meanings in relation to the phenomenon of adaptation are investigated. The main niches of employment of Kyrgyz migrants in the Moscow region are established, it turns out how the Kyrgyz youth lives on the territory of the host community. Four groups of migrants were recorded according to the level of adaptation. Three types of attitudes of respondents to the acculturation process are identified and interpreted: the strategy of marginalization in Moscow society, the strategy of complementarity, the strategy of assimilation of dominant norms. The conducted research contributes to the further expansion of the explanatory potential of the features of social adaptation of young citizens of Kyrgyzstan, fills the theory of social adaptation of migrants with new methodological content, allows conceptually ensuring the implementation of further empirical studies of the problems of social adaptation of migrants from the EAEU member states in Russia.

Differential analysis of adaptation strategies of flyin-fly-out staff after exposure to various factors of a professional environment

2020 ◽  
Author(s):  
Ya. A. Korneeva ◽  
N. N. Simonova
Keyword(s):  
Oil And Gas ◽  
Empirical Studies ◽  
Statistical Processing ◽  
Personal Characteristics ◽  
Gas Production ◽  
Adaptation Strategies ◽  
Differential Analysis ◽  
Physical And Mental Health ◽  
Oil And Gas Production ◽  
Holistic Management

The article presents a differential analysis of the adaptation strategies of fly-in-fly-out personnel. The study involved 359 fly-in-fly-out workers operating in the south and north of Russia. Empirical material was collected through five scientific expeditions in the fields of diamond, oil and gas production, the construction of gas pipelines, the construction of a bridge and an offshore oil platform. Research methods are questioning, psychophysiological and psychological testing aimed at the diagnosis of functional conditions and personal characteristics of the staff. Statistical processing was carried out using descriptive statistics and Pearson’s X2. In the framework of this work, we proceed from the understanding of adaptation strategies as the holistic management of an employee by his ergatic system, aimed at maintaining the necessary level of working capacity and functional state in the process of fulfilling professional duties in various conditions while preserving the employee’s physical and mental health, and considered for a long completed period of time . The study revealed the prevailing types of adaptation strategies (economical and emergency) among representatives of various industries and depending on the region where the industrial facility is located. The study was carried out in continuation of the empirical studies series on the socioenvironmental professional adaptation of fly-in-fly-out personnel.

The early bird catches the retirement savings

2019 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Lucía Rey-Ares ◽  
Sara Fernández-López ◽  
María Milagros Vivel-Búa ◽  
Rubén Lado-Sestayo
Keyword(s):  
Social Factors ◽  
Cognitive Abilities ◽  
Design Methodology ◽  
Empirical Studies ◽  
Planning Horizon ◽  
Retirement Savings ◽  
Short Term ◽  
Relevant Variable ◽  
Content Type

Purpose This paper aims to investigate whether individuals’ planning horizon influences their decision to save privately for their retirement. Design/methodology/approach Focussing on Spain, this empirical research uses the fifth wave of the Survey of Health, Ageing and Retirement in Europe (SHARE)[1]. Logit models are estimated considering variables related to demographic characteristics, economic situation, education and cognitive abilities and psychological and social factors. Findings The results confirm that the planning horizon significantly influences the decision to save for retirement. Long-term planners are more likely to save for retirement than short-term planners. Originality/value Although previous literature has identified the planning horizon as a relevant variable in the decision to save for retirement, few empirical studies have evaluated their impact. This paper shows that it is important to develop habits of financial planning in societies, especially in societies with a prominent orientation towards the present.

scholarly journals Understanding beverage taxation: Perspective on the Philadelphia Beverage Tax’s novel approach

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Ryan M. Kane ◽  
Vasanti S. Malik
Keyword(s):  
Policy Process ◽  
Empirical Studies ◽  
Health Impact ◽  
Short Term ◽  
Sugar Sweetened Beverage ◽  
Novel Approach ◽  
Global Trend ◽  
Health Impact Assessments ◽  
Political Entrepreneurs

Despite the growing global trend of sugar-sweetened beverage (SSB) taxes for their potential as an untapped source of revenue and as a public health boon, these legislative efforts remain controversial. Multiple articles have reviewed this trend in recent years from modeling of long-term impacts to short-term empirical studies, yet most comprehensive, long-term health impact assessments remain forthcoming. These multi-faceted efficacy studies combined with case-based assessments of the policy process, descriptive pieces highlighting unique features of the policy and reflective perspectives targeting unanswered questions create a comprehensive body of literature to help inform present and future legislative efforts. The passage of the Philadelphia Beverage tax required a mix of political entrepreneurs, timing and context; while uniquely employing a nonpublic health frame, specific earmarking and a broadened scope with the inclusion of diet beverages. This perspective on the Philadelphia Beverage Tax will describe the passage and novel features of the Philadelphia Beverage Tax with a discussion of the ethical questions unique to this case.

Graduates and Active Labour Market Programmes: Evidence of Deactivation

2012 ◽  
Vol 26 (2) ◽  
pp. 107-113 ◽  
Author(s):  
Simon Stephens
Keyword(s):  
Labour Market ◽  
Empirical Studies ◽  
Short Term ◽  
Active Labour ◽  
Individual Probability ◽  
The Individual ◽  
The Impact ◽  
Depth Interviews ◽  
Active Labour Market Programmes ◽  
Job Prospects

This paper explores the experiences of graduates who participated in a range of Active Labour Market Programmes (ALMPs) in Ireland. The paper uses narrative structuring to provide an enhanced understanding of the graduates' experiences. A review of the literature indicates that most empirical studies of the effects of ALMPs are quantitative. Typically, the studies evaluate whether participation in a programme increases the individual probability of leaving unemployment. This paper argues that other, softer outcomes must also be studied if the impact of ALMPs is to be properly understood. The author therefore adopts a qualitative approach to examine the impact of ALMPs on graduates. The data collected during in-depth interviews indicate a mixed picture. While graduates found their experiences during the ALMPs positive in the main, the impact on their outlook and job prospects is not encouraging. Too often, the graduates express a view that the ALMPs are a ‘short-term fix’, offering little prospect of secure employment. The paper identifies the potential problem of deactivation in addition to the problems of deadweight loss, substitution and displacement reported by Fraser (1999).

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