Are Adolescents Addicted to Smartphones?

Author(s):  
Geunyong Park ◽  
Jisun Lim

This empirical study shows how people use their smartphones by employing the rational addiction model of Becker and Murphy. The analysis uses micro-level panel data on the monthly usage of smartphone applications (so-called “apps”) derived from 10,337 users in South Korea, from 2012 to 2016. The authors find that smartphone users are “addicted” to mobile phone apps, in the sense that their prior usage has significantly influenced their current use. Nonetheless, people in the sample seem to use their smartphones in a forward-looking manner, adjusting consumption over time to maximize their utility. On the other hand, the study's result rejects the conventional belief that younger individuals behave more myopically than older ones. Furthermore, only the mother's smartphone use was found to generate a positive externality for her children.

Author(s):  
Geunyong Park ◽  
Jisun Lim

This empirical study shows how people use their smartphones by employing the rational addiction model of Becker and Murphy. The analysis uses micro-level panel data on the monthly usage of smartphone applications (so-called “apps”) derived from 10,337 users in South Korea, from 2012 to 2016. The authors find that smartphone users are “addicted” to mobile phone apps, in the sense that their prior usage has significantly influenced their current use. Nonetheless, people in the sample seem to use their smartphones in a forward-looking manner, adjusting consumption over time to maximize their utility. On the other hand, the study's result rejects the conventional belief that younger individuals behave more myopically than older ones. Furthermore, only the mother's smartphone use was found to generate a positive externality for her children.


2019 ◽  
Vol 35 (4) ◽  
pp. 445-464 ◽  
Author(s):  
David Peter Dolowitz ◽  
Rodica Plugaru ◽  
Sabine Saurugger

To date, there have been a number of studies that have examined how policies move from one jurisdiction to another. However, few of these studies have examined the micro-interactive effects of actors. This is necessary to understand how actors shape outcomes over time. The aim of this paper is to engage with this micro-level literature through an empirical study of policy transfer in the field of architectural norms in hospital construction in post-Soviet states. To do this, we generate several theoretical assumptions to link the transfer literature to wider debates in the governance framework. The goal is to discover how the power of actors interacts in the policymaking processes to influence outcomes over time and in light of learning. What we hope to do is bring the interactive and dynamic effects that occur between agents attempting to shape the transfer process back into the transfer picture. The aim is to show that power flows and that these flows alter the shape and outcome of the transfer process.


2011 ◽  
Vol 403-408 ◽  
pp. 2526-2529
Author(s):  
Hai Ying Liu

The paper is based on the SGR model by Robert C Higgins. Through regression analysis and panel data, we find that the diligent boards and the stock-keeping ratio of board directors are associated with higher sustainable growth, while board size can restrain sustainable growth to some extent,With respect to the other variables, results indicate that CEO-duality and percent of independent directors on the board do not significantly influent sustainable growth.


2008 ◽  
Vol 15 (1) ◽  
pp. 73-91 ◽  
Author(s):  
Torbjörn Engdahl ◽  
Anders Ögren

AbstractComplementarity of money means that two or more kinds of monies together fulfil the demands of the users better than they would without the existence of the other(s). In this article we study complementarity between paper monies in Sweden. We address four questions: 1. What was used as money at a macro-level (money supply) and at a micro-level (monetary remittances)? 2. What was the relative value of different monies in parallel circulation? 3. Were there seasonal variations in use and/or value of these monies? 4. Were there geographical variations in use and value? What we find is that the complementarity helped to solve the problem of providing sufficient liquidity domestically over time and space and thus contributed to the maintenance of a stable value of the currency.


2017 ◽  
Vol 35 (2) ◽  
pp. 200-227
Author(s):  
Wei Lan Chong ◽  
Kien Hwa Ting ◽  
Fan Fah Cheng

Purpose The purpose of this paper is to examine the impact of free cash flow (FCF) on the agency costs and how these FCF and agency costs affect the performance of REITs in Asia. Unlike previous studies that focus on conventional public listed companies and non-regulated industry, the Asian REIT industry being a highly regulated industry provides a new context for further research. Design/methodology/approach The samples for this study comprise REIT data from four major Asian REIT countries, namely, Japan, Singapore, Hong Kong and Malaysia. These countries are the leaders in Asian REITs which account for 94 percent of the total market capitalization of REITs in Asia. The study period is from 2002 to 2012 using panel data. This study employs GMM method which is more robust compared to previous studies that used pooled ordinary least squares (OLS) and other panel data methods. Findings The results indicate that FCF and agency costs persist over time in Asian REITs even though REITs are in a highly regulated industry. The findings also imply that REIT managers face substantial costs when they wish to adjust to the equilibrium level of agency costs, whereby the optimum level is always dynamic and not constant over time and moves with the changes in the determinants of agency costs. These agency costs persist over time and have significant impacts on the performance of REITs in Asia. Research limitations/implications There are limited data in selling, general and administrative expenses in Asian REITs which render only limited use of selling, general and administrative expenses ratio in this empirical study on Asian REITs. For future research, researchers can embark on research studies on issues that might determine the speed of adjustment toward the equilibrium level of agency costs in Asian REITs. Practical implications For REIT regulators in Asia, this empirical study helps to provide useful information for policy planning and formulation in REIT corporate governance; and to transform the inherent satellite structure of the externally managed REIT structure into internally managed REIT structure. For REIT managers and practitioners, this empirical study serves as a reflection for them which helps them to be more aware of the dynamism of FCF and agency costs in REITs; and alert them that these FCF and agency costs persist over time which can have significant impacts on the REIT performance, return on assets and return on equity, REIT value and REIT return, respectively in Asia. Thus, they could consider internalizing their REIT management structure for better and more efficient management in REITs in order to mitigate the agency costs that are persistent over time. As a whole, this empirical study contributes significant benefits to all level of the REIT industry in Asia. Social implications This implies that the REITs in Asia should consider internally managed REIT structure since the agency costs persist over time and there are always dynamic and not constant over time and moves with the changes in the determinants of agency costs. The findings also imply that the regulators in Asian REITs should enforce absolute stringent corporate governance rules and regulations in order to govern the existing inherent satellite structure of the externally managed REITs in Asia. Originality/value This empirical study contributes significant benefits to all levels of the REIT industry in Asia and the current limited literature on Asian REITs by examining the impact of FCF and agency costs on the performance of REITs in Asia. This is the first research to embark on FCF and agency costs on REITs in Asia. Furthermore, this study employs GMM method which is more robust compared to previous studies that used pooled OLS and other panel data methods.


Author(s):  
Ansgar Hudde ◽  
Henriette Engelhardt

Abstract This paper tests whether couples in which partners hold dissimilar gender role attitudes are less likely to have a first child together compared to couples in which both partners share similar attitudes. The study contributes to micro-level research on gender role attitudes and fertility, which has examined the content of one partner’s attitudes, but not the fit of both partners’ views. We analyse unique panel data from the German Family Panel (pairfam) collected between 2008 and 2017, which includes information on the attitudes of both partners in a couple. Results show that couples whose members have dissimilar gender role attitudes are substantially and significantly less likely to have a child together over time. This observation holds independently of both partners’ individual attitudes and holds against a number of robustness checks.


Author(s):  
Melanie K. T. Takarangi ◽  
Deryn Strange

When people are told that their negative memories are worse than other people’s, do they later remember those events differently? We asked participants to recall a recent negative memory then, 24 h later, we gave some participants feedback about the emotional impact of their event – stating it was more or less negative compared to other people’s experiences. One week later, participants recalled the event again. We predicted that if feedback affected how participants remembered their negative experiences, their ratings of the memory’s characteristics should change over time. That is, when participants are told that their negative event is extremely negative, their memories should be more vivid, recollected strongly, and remembered from a personal perspective, compared to participants in the other conditions. Our results provide support for this hypothesis. We suggest that external feedback might be a potential mechanism in the relationship between negative memories and psychological well-being.


2011 ◽  
pp. 99-118
Author(s):  
Yu. Olsevich

The article analyzes the psychological basis of the theory and economic policy of libertarianism, as contained in the book by A. Greenspan "The Age of Turbulence", clarifies the strengths and weaknesses of this doctrine that led to its discredit in 2008. It presents a new understanding of liberalization in 1980-1990s as a process of institutional transformation at the micro and meso levels, implemented by politicians and entrepreneurs with predatory and opportunistic mentality. That process caused, on the one hand, the acceleration of growth, on the other hand - the erosion of informal foundations of a market system. With psychology and ideology of libertarianism, it is impossible to perceive real macro risks generated at the micro level, which lead to a systemic crisis, and to develop measures to prevent it.


Author(s):  
Avi Max Spiegel

This chapter seeks to understand how Islamist movements have evolved over time, and, in the process, provide important background on the political and religious contexts of the movements in question. In particular, it shows that Islamist movements coevolve. Focusing on the histories of Morocco's two main Islamist movements—the Justice and Spirituality Organization, or Al Adl wal Ihsan (Al Adl) and the Party of Justice and Development (PJD)—it suggests that their evolutions can only be fully appreciated if they are relayed in unison. These movements mirror one another depending on the competitive context, sometimes reflecting, sometimes refracting, sometimes borrowing, sometimes adapting or even reorganizing in order to keep up with the other.


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