Search results for "Econometric"
showing 10 items of 3780 documents
The Stabilizing Role of Government Size
2007
This paper presents an analysis of how alternative models of the business cycle can replicate the stylized fact that large governments are associated with less volatile economies. Our analysis shows that adding nominal rigidities and costs of capital adjustment to an otherwise standard RBC model can generate a negative correlation between government size and the volatility of output. However, in the model, we find that the stabilizing effect is only due to a composition effect and it is not present when we look at the volatility of private output. Given that empirically we also observe a negative correlation between government size and the volatility of consumption, we modify the model by i…
Predicting cocaine consumption in Spain: A mathematical modelling approach
2010
In this article, we analyse the evolution of cocaine consumption in Spain and we predict consumption trends over the next few years. Additionally, we simulate some scenarios which aim to reduce cocaine consumption in the future (sensitivity analysis). Assuming cocaine dependency is a socially transmitted epidemic disease, this leads us to propose an epidemiological-type mathematical model to study consumption evolution. Model sensitivity analysis allows us to design strategies and analyse their effects on cocaine consumption. The model predicts that 3.5% of the Spanish population will be habitual cocaine consumers by 2015. The simulations carried out suggest that cocaine consumption prevent…
Mothers’ self-representations and representations of childhood on social media
2023
Funding Information: This work was supported by Kone Foundation, Academy of Finland (#320370), Strategic Research Council (#327237), Strategic Research Council (#327395), Intimacy in Data-driven Culture (IDA). The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. Publisher Copyright: © 2023, Minna Kallioharju, Terhi-Anna Wilska and Annamari Vänskä. Purpose: The purpose of this paper is to examine mothers’ social media accounts that focus on children’s fashion. The authors probed children’s fashion photo practices as representations of the mothers’ extended self and the kind of childhood representations produce…
Development of organizational trust among employees from a contextual perspective
2006
It is becoming increasingly accepted that trust in the workplace is an important factor which potentially leads to enhanced organizational performance and can be a source of competitive advantage in the long run (e.g. McAllister 1995, Whitener et al. 1998, Leana & van Buren III 1999, Wicks et al. 1999, Gould-Williams 2003). Although it may be unreasonable to expect that any firm can have boundless trust among employees, the starting point of this paper lies in the argument that organizational trust is more desirable from the viewpoint of the firm’s economic prosperity than its lack. Organizational trust is important for successful socialization, cooperation and effective teamworking (cf. Pu…
Utility of the Mantel-Haenszel Procedure for Detecting Differential Item Functioning in Small Samples
2004
Sample-size restrictions limit the contingency table approaches based on asymptotic distributions, such as the Mantel-Haenszel (MH) procedure, for detecting differential item functioning (DIF) in many practical applications. Within this framework, the present study investigated the power and Type I error performance of empirical and inferential criteria for DIF detection in small samples. Sample sizes (50/50, 100/50, 200/50, and 100/100 for the reference and focal groups, respectively), ability distributions (equal and unequal), and amount of DIF (moderate and high) were manipulated. The results show the advantages of employing theMHchi-square statistic using high levels of significance (•…
Income distribution dynamics: monotone Markov chains make light work
1995
This paper considers some aspects of the dynamics of income distributions by employing a simple Markov chain model of income mobility. The main motivation of the paper is to introduce the techniques of “monotone” Markov chains to this field. The transition matrix of a discrete Markov chain is called monotone if each row stochastically dominates the row above it. It will be shown that by embedding the dynamics of the income distribution in a monotone Markov chain, a number of interesting results may be obtained in a straightforward and intuitive fashion.
The inconvenience yield of carbon futures
2021
Abstract Since 2009, the European Carbon Futures Market has been in a permanent contango situation that is characterised by systematic negative convenience yields that allow investors to exploit profitable arbitrage opportunities. The objective of this paper is to analyse the possible drivers of these negative convenience yields. Our empirical results indicate that although some carbon trading variables are behind this contango situation, the carbon inconvenience yield is better explained if other financial markets and variables are considered, suggesting a financialization of the European Carbon Futures Market.
Ética y Responsabilidad Social en las alianzas estratégicas. El caso de las alianzas entre entidades lucrativas y no lucrativas
2021
Las alianzas estratégicas han sido herramientas utilizadas por las organizaciones durante años para garantizar su desarrollo empresarial. En las últimas décadas, las demandas más exigentes de la sociedad han propiciado la necesidad de acuerdos de cooperación destinados a la creación de valor no únicamente para los socios implicados, sino también para los diferentes actores de la comunidad. Con esta finalidad, en el entorno actual se lleva a cabo un mayor número de alianzas estratégica entre entidades lucrativas y sin ánimo de lucro. Éstas no solo propician un impacto positivo para los socios a través de una mejora de su imagen o reputación, sino que también son propulsoras del desarrollo so…
Viral tunes:changes in musical behaviours and interest in coronamusic predict socio-emotional coping during COVID-19 lockdown
2021
AbstractBeyond immediate health risks, the COVID-19 pandemic poses a variety of stressors, which may require expensive or unavailable strategies during a pandemic (e.g., therapy, socialising). Here, we asked whether musical engagement is an effective strategy for socio-emotional coping. During the first lockdown period (April–May 2020), we surveyed changes in music listening and making behaviours of over 5000 people, with representative samples from three continents. More than half of respondents reported engaging with music to cope. People experiencing increased negative emotions used music for solitary emotional regulation, whereas people experiencing increased positive emotions used musi…
Comparative efficiency of green and conventional bonds pre- and during COVID-19: An asymmetric multifractal detrended fluctuation analysis
2021
Abstract Motivated by the lack of research on price efficiency dynamics of green bonds and the impact of the COVID-19 on the pricing of fixed-income securities, this study investigates the comparative efficiency of green and conventional bond markets pre- and during the COVID-19 pandemic applying asymmetric multifractal analysis. Specifically, the multifractal scaling behaviour is examined separately during upward and downward trends in bond markets using the asymmetric multifractal detrended fluctuation analysis (A-MF-DFA) approach. The empirical findings confirm the presence of asymmetric multifractality in the green and traditional bond markets. Not surprisingly, inefficiency in both bon…