1,436 research outputs found

    Financial globalization, governance, and the evolution of the home bias

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    Standard portfolio theories of the home bias are disconnected from corporate finance theories of insider ownership. We merge the two into what we call the optimal ownership theory of the home bias. The theory has the following components. In countries with poor governance, it is optimal for insiders to own large stakes in corporations and for large shareholders to monitor insiders. Foreign portfolio investors will exhibit a large home bias against such countries because their investment is limited by the shares held by insiders (the "direct effect" of poor governance) and domestic monitoring shareholders ("the indirect effect").> ; Foreigners can also enter as foreign direct investors; if they are from countries with good governance, they have a comparative advantage as insider monitors in countries with poor governance, so that the relative importance of foreign direct investment in total foreign equity investment is negatively related to the quality of governance. Using two datasets, we find strong evidence that the theory can help explain the evolution of the home bias. Using country-level U.S. data, we find that on average the home bias of U.S. investors towards the 46 countries with the largest equity markets did not fall over the past decade, but it decreased the most towards countries in which the ownership by corporate insiders decreased, and the importance of foreign direct investment fell in countries in which ownership by corporate insiders fell. Using firm-level data for Korea, we find evidence of the additional indirect effect of poor governance on portfolio equity investment by foreign investors.Investments, Foreign ; Globalization

    The association of intimate partner violence and contraceptive use : a multi-country analysis of demographic and health surveys

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    Background Intimate partner violence (IPV) affects millions of women each year and has been recognized as a leading cause of poor health, disability, and death among women of reproductive age. However, the existing studies about the association between IPV and contraceptive use have been found to be conflicting and relatively less studied, particularly in low and middle income countries, including Eastern Sub Saharan Africa (SSA). This study examines the relationship between IPV and contraceptive use in Eastern SSA countries. Methods The Demographic and Health Surveys (DHS) from 2014 to 2017 were a multi-stage cluster sample survey of 30,715 ever married (or cohabitating) women of reproductive age from six countries. The six Eastern SSA datasets were pooled and multivariable logistic regression using a hierarchical approach was performed to examine the association between IPV and contraceptive use after adjusting for women, partners, and household and health facility factors. Result Two thirds of women 67% [66.55, 67.88] were not using any modern contraceptive methods and almost half (48%) of the women had experienced at least one form of IPV from their partners. Our analysis showed a strong association with decreased odds of physical violence [adjusted odds ratios (aOR) = 0.72, 95%CI: 0.67, 0 0.78] among women not using any contraceptive methods. Other factors associated with women not using any contraceptive methods were older women (35–49 years), illiterate couples and women from poorest households. Women who had no access to any form of communication [aOR = 1.12, 95%CI: 1.08, 1.36], unemployed partner [aOR = 1.55, 95%CI: 1.23, 1.95] and women who travelled long distances to access health services [aOR = 1.16, 95%CI: 1.06, 1.26] significantly reported increased odds of not using any contraceptive methods. Conclusion Our study indicated that physical violence was negatively associated with not using any contraceptive method among married women in Eastern SSA countries. Tailored intervention messages to reduce IPV including physical violence among women not using contraceptive methods in East Africa should target those from low-socioeconomic groups especially, older women with no access to any form of communication, unemployed partners, and illiterate couples

    Densely Entangled Financial Systems

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    In [1] Zawadoski introduces a banking network model in which the asset and counter-party risks are treated separately and the banks hedge their assets risks by appropriate OTC contracts. In his model, each bank has only two counter-party neighbors, a bank fails due to the counter-party risk only if at least one of its two neighbors default, and such a counter-party risk is a low probability event. Informally, the author shows that the banks will hedge their asset risks by appropriate OTC contracts, and, though it may be socially optimal to insure against counter-party risk, in equilibrium banks will {\em not} choose to insure this low probability event. In this paper, we consider the above model for more general network topologies, namely when each node has exactly 2r counter-party neighbors for some integer r>0. We extend the analysis of [1] to show that as the number of counter-party neighbors increase the probability of counter-party risk also increases, and in particular the socially optimal solution becomes privately sustainable when each bank hedges its risk to at least n/2 banks, where n is the number of banks in the network, i.e., when 2r is at least n/2, banks not only hedge their asset risk but also hedge its counter-party risk.Comment: to appear in Network Models in Economics and Finance, V. Kalyagin, P. M. Pardalos and T. M. Rassias (editors), Springer Optimization and Its Applications series, Springer, 201

    A systematic review and meta-analysis of associated factors of gender-based violence against women in sub-Saharan Africa

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    A systematic review and meta-analysis were employed to address the associated factors of gender-based violence (GBV) in sub-Saharan African (SSA) countries. The Preferred Reporting Items for Systematic reviews and Meta-Analysis guidelines were followed. Ovid Medline, CINAHL, Cochrane Central, Embase, Scopus and Web of Science were used to source articles with stringent eligibility criteria. A total of 4931 studies were found and 50 studies met the inclusion criteria. Pooled meta-analyses revealed that low educational attainment, higher alcohol consumption, substance use, history of child and family abuse, limited decision-making skills, experiencing depression, males having multiple sexual partners, and younger age were found to be individual- and family-associated factors that increase the experiences of GBV. Community tolerant attitudes to violence, women’s unemployment, being Muslim, lower socioeconomic class, food and social insecurity were found to be community- and societal-associated factors of GBV. Alcohol consumption, low educational attainment, experiencing depression, being younger, a history of child and family abuse, tolerant attitudes to violence, and low socioeconomic status were poignant factors associated with GBV amongst women in SSA countries. The need to develop a multipronged approach of intervention is a top priority in SSA to reach the Sustainable Development Goals’ (SDGs) target of 2030 to eliminate all forms of violence. Socio-behavioural change communication interventions at individual and community levels need to be introduced, and interventions need to address the prevention of child and family abuse and increase women’s feelings of empowerment in order to prevent GBV in SSA

    Gender based violence against women in Sub-Saharan Africa : a systematic review and meta-analysis of cross-sectional studies

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    This study aimed to systematically review studies that examined the prevalence of gender based violence (GBV) that included intimate partner violence (IPV) and non-IPV among women in sub-Saharan Africa (SSA). This evidence is an important aspect to work towards achieving the Sustainable Development Goals (SDG’s) target of eliminating all forms of violence in SSA. The Preferred Reporting Items for Systematic reviews and Meta-Analysis (PRISMA) guidelines were followed. Ovid Medline, CINAHL, Cochrane Central, Embase, Scopus and Web of Science were used to source articles with stringent eligibility criteria. Studies on GBV in SSA countries that were published in English from 2008 to 2019 were included. A random effect meta-analysis was used. Fifty-eight studies met the inclusion criteria. The pooled prevalence of IPV among women was 44%, the past year-pooled prevalence of IPV was 35.5% and non-IPV pooled prevalence was 14%. The highest prevalence rates of IPV that were reported included emotional (29.40%), physical (25.87%) and sexual (18.75%) violence. The sub-regional analysis found that women residing in Western (30%) and Eastern (25%) African regions experienced higher levels of emotional violence. Integrated mitigation measures to reduce GBV in SSA should focus mainly on IPV in order to achieve the SDG’s that will lead to sustainable changes in women’s health

    Angiotensin II-receptor subtypes in human atria and evidence for alterations in patients with cardiac dysfunction

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    Angiotensin II (All) has been implicated as an important factor in the pathophysiology of heart diseases. Following the recent identification of two subtypes of the All receptor in cardiac tissue of animals, we investigated the possible occurrence of these, or similar, subtypes in human atrial tissue. In right-atrial tissue from patients undergoing heart surgery, we determined the All-receptor profile in receptor binding studies, using [125I]-angiotensin as radioligand and All as well as two compounds selective for the receptor subtypes to identify and quantify All-receptor subpopulations. In 35 patients (23 requiring coronary bypasses, 10 vaivular surgery and two combined coronary and valvular surgery), the left-ventricular ejection fraction was determined in the preoperative phase, and right- and left-atrial pressure during surgery. In membranes of human right atria, All receptors are present in high density (median: Bmax= 294 fmol. mg−1 protein, range: 111-2073) and two different subtypes can be distinguished. Type-1 receptors (AT1) accounted for 33 ± l0% of the population whereas type-2 receptors (AT2) made up 67 ± 10% of the population. There was no correlation between any of the measured cardiac functions and total All-receptor density or receptor affinity. However, the percentage of AT1 receptors was higher in the atria of patients with normal right-atrial pressure; left-ventricular ejection fraction was positively and right-atrial pressure inversely correlated with the percentage of AT1 receptors (r=0·740 and -0·901, respectively; P<0·001, for both). Moreover, the percentage of AT receptors was directly correlated with the levels of left-atrial pressure (r=0·853; P<0·001). It is concluded that the ratio of AT1 to AT2 receptors correlates well with right-atrial pressure and left-ventricular function. This is a first indication of a possible involvement of All-receptor subtypes in the pathophysiology of cardiac dysfunction

    Heart valve replacement with the Björk-Shiley and St Jude Medical prostheses: A randomized comparison in 178 patients

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    In 178 patients, a randomized prospective comparison between the 60° spherical disc Björk-Shiley (BS) and the St Jude Medical (SJM) heart valve prostheses was performed. Four-week perioperative mortality was zero in the BS (n = 84) and 4.3% in the SJM group (n = 94). During a mean ( ± SD) follow-up of 52 ± 20 months or 778 patient-years, late cardiac mortality per year was 2.4% in the BS and 2.2% in the SJM group. The yearly thromboembolic rates were 1.4% in the BS and 2.0% in the SJM group. There was no mechanical valve failure or haemolytic anaemia. Paravalvular leaks and major bleeding complications occurred at low rates in both groups (1.1% and2.2% per year in BS; 0.7% and 1.7% per year in SJM). Functional results were similarly good with 96% of patients with BS valves and 95% of patients with SJM prostheses being in NYHA classes I and II, respectively. We conclude that heart valve replacement with mechanical prostheses can be performed with equally good results using either the Björk-Shiley spherical disc valve or the St Jude Medical bileaflet prosthesi

    Factors Impacting Capital Expenditures in the Quick Service Restaurant Industry

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    The purpose of this article is to study the factors that impact capital expenditures in the quickservice restaurant industry. The authors hypothesize that growth opportunities, free cash flow, size, corporate earnings, economic conditions, and franchising status will have impact on the capital expenditures of quick-service restaurants. This study analyzed capital expenditure and other financial data on quick service restaurants for the period 2006–2016. Results suggest that corporate earnings, size, cash flow, economic conditions, and franchising have a significant relationship with capital expenditures, while growth opportunities are not associated with capital expenditures. Specifically, a high degree of corporate earnings, large size, and a high degree of cash flow tend to be associated with a high degree of capital expenditures; while favorable economic conditions and franchising tend to be associated with a low level of capital expenditures
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