scholarly journals Why do men marry and why do they stray?

2007 ◽  
Vol 274 (1618) ◽  
pp. 1643-1649 ◽  
Author(s):  
Jeffrey Winking ◽  
Hillard Kaplan ◽  
Michael Gurven ◽  
Stacey Rucas
Keyword(s):  
Great Apes ◽  
Division Of Labour ◽  
Sexual Relationships ◽  
The Other ◽  
Mating Effort ◽  
Paternal Investment ◽  
Sexual Division ◽  
Social Arrangements ◽  
Using Data

Humans are quite unusual compared to other great apes in that reproduction typically takes place within long-term, iteroparous pairings—social arrangements that have been culturally reified as the institution of marriage. With respect to male behaviour, explanations of marriage fall into two major schools of thought. One holds that marriage facilitates a sexual division of labour and paternal investment, both important to the rearing of offspring that are born helpless and remain dependent for remarkably long periods (provisioning model). And the other suggests that the main benefits which men receive from entering into marriage derive from monopolizing access to women's fertility (mating effort model). In this paper, we explore extramarital sexual relationships and the conditions under which they occur as a means of testing predictions derived from these two models. Using data on men's extramarital sexual relationships among Tsimane forager–horticulturists in lowland Bolivia, we tested whether infidelity was more common when men had less of an opportunity to invest in their children or when they risked losing less fertility. We found that Tsimane men appear to be biasing the timing of their affairs to when they are younger and have fewer children, supporting the provisioning model.

scholarly journals Direction of Causality between Financial Development and Economic Growth in Turkey

2021 ◽  
pp. 22-37
Author(s):  
Cengiz Yılmaz ◽  
Banu Demirhan
Keyword(s):  
Economic Growth ◽  
Time Series ◽  
Gross Domestic Product ◽  
Financial Development ◽  
The Other ◽  
Development Indicators ◽  
Short Run ◽  
Causality Relationship ◽  
Using Data

This paper has investigated the causality relationship between financial development and economic growth in Turkey, using data from 2005:04 to 2020:03. We construct a time-series model to explore causality relationships between the variables. In the study, two indicators were used as financial development indicators: banking loans to the private sector and money supply to GDP (Gross Domestic Product). The empirical results have represented a bi-directional relationship between financial development and economic growth in the short run. On the other hand, we have not found a causality relationship in the long term.

Intergenerational Mobility and Long-term Socio-economic Change in Pakistan

1986 ◽  
Vol 25 (4) ◽  
pp. 609-628
Author(s):  
Ivo C. Havinga ◽  
Faiz Mohammad ◽  
Suleiman I. Cohen
Keyword(s):  
Development Process ◽  
Intergenerational Mobility ◽  
Upward Mobility ◽  
Economic Change ◽  
Physical Capital ◽  
The Other ◽  
Primary Sources ◽  
Using Data ◽  
Changing Society

Development process may entail changes in the socio-economic positions of people from one generation to the other. In Pakistan, no attempt has so far been made to study the lines on which people gain upward mobility or the factors which are involved in this process. This paper is an attempt in this direction. By using data from primary sources, we aim at .explaining the income and wealth positions of Pakistanis from different generations in terms of their endowments of social, human and physical capital and other socio-economic characteristics. The assessment of incidence and nature of such mobility would enable us to identify the processes through which different socio-economic groups attempt to improve their positions in a changing society.

scholarly journals Inter-Ethnic Friendship and Hostility between Roma and non-Roma Students in Hungary: The Role of Exposure and Academic Achievement

2018 ◽  
Vol 19 (1) ◽  
Author(s):  
Tamás Hajdu ◽  
Gábor Kertesi ◽  
Gábor Kézdi
Keyword(s):  
Academic Achievement ◽  
Ethnic Group ◽  
Ethnic Relations ◽  
The Other ◽  
Closing The Achievement Gap ◽  
Group Relations ◽  
Positive Effects ◽  
Using Data

AbstractThis study examines friendship and hostility relations between Roma students and the ethnically homogeneous non-Roma majority in Hungarian schools. Using data on friendship and hostility relations of 15-year-old students from 82 schools, the study focuses on the interaction between exposure to the other ethnic group and academic achievement of Roma students. High-achieving Roma students are shown to have significantly more friends and fewer adversaries than low-achieving ones, due to better inter-ethnic relations while having similar within-ethnic group relations. As a result, higher exposure to Roma students translates to more friendship and less hostility from non-Roma students in environments where more of the Roma students have higher achievement. Therefore, policies helping the achievement of Roma students can have immediate as well as long-term positive effects. Simulations suggest that a mixed policy of desegregation and closing the achievement gap may best foster positive inter-ethnic relations.

scholarly journals Determinants of Long-Term Unemployment in Brazil in 2013

2018 ◽  
Vol 10 (6) ◽  
pp. 53
Author(s):  
Elano F. Arruda ◽  
Daniel B. Guimarães ◽  
Ivan Castelar ◽  
Pablo U. C. Castelar
Keyword(s):  
Higher Education ◽  
Household Survey ◽  
Probit Model ◽  
The Other ◽  
Southeast Region ◽  
The North ◽  
National Household Survey ◽  
Household Heads ◽  
Using Data

This work analyzes the determinants of the probability of a Brazilian worker being unemployed for more than a year, using data from the 2013 National Household Survey (PNAD) and applying a probit model. The results show a lower chance of remaining jobless of males, heads of households, those who declared themselves black, younger people, those who completed higher education or are in the process of acquiring it, and residents of the Southeast and South regions of Brazil. The probabilistic scenarios show that the Brazilian workers least likely to remain unemployed for over a year are males, residents in the South or Southeast region, heads of a household, between 36 and 45 years of age, with higher education, with only a 0.6% chance of remaining in that condition. On the other hand, the workers with the highest chance of remaining unemployed are females, between 46 and 65 years old, residents in the North region, illiterate and not household heads, with a 41% probability of remaining unemployed.

scholarly journals Chimpanzee fathers bias their behaviour towards their offspring

2016 ◽  
Vol 3 (11) ◽  
pp. 160441 ◽  
Author(s):  
Carson M. Murray ◽  
Margaret A. Stanton ◽  
Elizabeth V. Lonsdorf ◽  
Emily E. Wroblewski ◽  
Anne E. Pusey
Keyword(s):  
Common Ancestor ◽  
Paternal Care ◽  
Mating Effort ◽  
Last Common Ancestor ◽  
Paternal Investment ◽  
Hominin Evolution ◽  
Lactating Mothers ◽  
Paternal Effort ◽  
Effort Hypothesis

Promiscuous mating was traditionally thought to curtail paternal investment owing to the potential costs of providing care to unrelated infants. However, mounting evidence suggests that males in some promiscuous species can recognize offspring. In primates, evidence for paternal care exists in promiscuous Cercopithecines, but less is known about these patterns in other taxa. Here, we examine two hypotheses for paternal associations with lactating mothers in eastern chimpanzees ( Pan troglodytes schweinfurthii ): paternal effort, whereby males associate and interact more with their own infants, and mating effort, whereby males invest in mothers and offspring for mating privileges. We found that fathers associated more with their offspring than they did with non-kin infants, particularly early in life when infanticide risk is highest. Additionally, fathers and their infant offspring interacted more than expected. Notably, association between fathers and mother–infant pairs did not predict the probability of siring the mother's next offspring. Our results support the paternal effort, but not the mating effort hypothesis in this species. Chimpanzees are one of the most salient models for the last common ancestor between Pan and Homo , thus our results suggest that a capacity for paternal care, possibly independent of long-term mother–father bonds, existed early in hominin evolution.

A subtle kind of certainty

2017 ◽  
Vol 8 (1) ◽  
pp. 85-106
Author(s):  
Patrick F. Parnaby
Keyword(s):  
Economic Growth ◽  
The Other ◽  
Symbiotic Relationship ◽  
Economic Uncertainty ◽  
Structured Interviews ◽  
Short Term ◽  
Social Phenomena ◽  
Financial Planners ◽  
Using Data

Abstract Using data collected from 42 semi-structured interviews with professional financial planners and eight recorded meetings between planners and clients, this paper examines two interrelated social phenomena from a Bourdieusian (1977, 1991) perspective. First, it examines how professional financial planners legitimize their expertise by constructing and maintaining a distinction between short-term economic uncertainty on one hand, and the inevitability of long-term economic growth on the other. Second, it conceptualizes those legitimation practices in terms of their symbiotic relationship to broader structural conditions. The analysis concludes by reflecting on the significance of misrecognition as it relates to industry claims about the future.

Cross-Border Interactions and European Identity

2021 ◽  
Vol 20 (3) ◽  
pp. 380-401
Author(s):  
João Henriques
Keyword(s):  
Social Systems ◽  
The Other ◽  
European Identity ◽  
Host Society ◽  
Short Term ◽  
Cross Border ◽  
Using Data ◽  
The Life Course ◽  
Different Levels

Abstract This article examines what types of cross-border interactions promote a stronger sense of European identity than national identity. Firstly, using data from the Eurobarometer survey a typology of cross-border practices is constructed and associated with different levels of European identity. Secondly, a qualitative study evaluates the life course of 36 individuals involved in a European binational relationship. Both interactions within and outside Europe are assessed. The findings show that three types of interactions might promote a strong identification as European: Intra-European integrative interactions, involving a certain level of integration into the host society (in economic, educational and social systems) and associated with long-term stays; Multicultural interactions, involving a setting of shared activities and cooperation between individuals of several European nationalities; and Outside Europe interactions, that put Europe at perspective between the “we” and the “others”. On the other hand, the effect of Non-Integrative (sojourns) and short-term stays might be negligible.

Radioimmunotherapy for treatment of acute myeloid leukaemia and myelodysplastic syndrome

2005 ◽  
Vol 44 (03) ◽  
pp. 107-117
Author(s):  
R. G. Meyer ◽  
W. Herr ◽  
A. Helisch ◽  
P. Bartenstein ◽  
I. Buchmann
Keyword(s):  
Acute Myeloid Leukaemia ◽  
Myeloid Leukaemia ◽  
Primary Tumour ◽  
The Other ◽  
Haematopoietic Stem Cell ◽  
Other Hand ◽  
Primary Reduction ◽  
The One ◽  
Acute Myeloid

SummaryThe prognosis of patients with acute myeloid leukaemia (AML) has improved considerably by introduction of aggressive consolidation chemotherapy and haematopoietic stem cell transplantation (SCT). Nevertheless, only 20-30% of patients with AML achieve long-term diseasefree survival after SCT. The most common cause of treatment failure is relapse. Additionally, mortality rates are significantly increased by therapy-related causes such as toxicity of chemotherapy and complications of SCT. Including radioimmunotherapies in the treatment of AML and myelodyplastic syndrome (MDS) allows for the achievement of a pronounced antileukaemic effect for the reduction of relapse rates on the one hand. On the other hand, no increase of acute toxicity and later complications should be induced. These effects are important for the primary reduction of tumour cells as well as for the myeloablative conditioning before SCT.This paper provides a systematic and critical review of the currently used radionuclides and immunoconjugates for the treatment of AML and MDS and summarizes the literature on primary tumour cell reductive radioimmunotherapies on the one hand and conditioning radioimmunotherapies before SCT on the other hand.

Hidden “holes” in the capital of banks and the supply of credit to the real sector of economy

2018 ◽  
pp. 49-68 ◽  
Author(s):  
M. E. Mamonov
Keyword(s):  
Credit Risk ◽  
The Other ◽  
Real Sector ◽  
Capital Management ◽  
Loan Loss ◽  
Short Term ◽  
The Real ◽  
Ex Post ◽  
The One

Our analysis documents that the existence of hidden “holes” in the capital of not yet failed banks - while creating intertemporal pressure on the actual level of capital - leads to changing of maturity of loans supplied rather than to contracting of their volume. Long-term loans decrease, whereas short-term loans rise - and, what is most remarkably, by approximately the same amounts. Standardly, the higher the maturity of loans the higher the credit risk and, thus, the more loan loss reserves (LLP) banks are forced to create, increasing the pressure on capital. Banks that already hide “holes” in the capital, but have not yet faced with license withdrawal, must possess strong incentives to shorten the maturity of supplied loans. On the one hand, it raises the turnovers of LLP and facilitates the flexibility of capital management; on the other hand, it allows increasing the speed of shifting of attracted deposits to loans to related parties in domestic or foreign jurisdictions. This enlarges the potential size of ex post revealed “hole” in the capital and, therefore, allows us to assume that not every loan might be viewed as a good for the economy: excessive short-term and insufficient long-term loans can produce the source for future losses.

Interrelationships between municipal spatial policy strategy and airport operation and development. Lodz Airport case study

2018 ◽  
Vol 59 (1) ◽  
pp. 65-79
Author(s):  
Katarzyna Nikorowicz-Zatorska
Keyword(s):  
Land Use ◽  
Urban Planning ◽  
Cultural Development ◽  
The Other ◽  
Local Authorities ◽  
Spatial Management ◽  
The One ◽  
Surrounding Areas

Abstract The present paper focuses on spatial management regulations in order to carry out investment in the field of airport facilities. The construction, upgrades, and maintenance of airports falls within the area of responsibility of local authorities. This task poses a great challenge in terms of organisation and finances. On the one hand, an active airport is a municipal landmark and drives local economic, social and cultural development, and on the other, the scale of investment often exceeds the capabilities of local authorities. The immediate environment of the airport determines its final use and prosperity. The objective of the paper is to review legislation that affects airports and the surrounding communities. The process of urban planning in Lodz and surrounding areas will be presented as a background to the problem of land use management in the vicinity of the airport. This paper seeks to address the following questions: if and how airports have affected urban planning in Lodz, does the land use around the airport prevent the development of Lodz Airport, and how has the situation changed over the time? It can be assumed that as a result of lack of experience, land resources and size of investments on one hand and legislative dissonance and peculiar practices on the other, aviation infrastructure in Lodz is designed to meet temporary needs and is characterised by achieving short-term goals. Cyclical problems are solved in an intermittent manner and involve all the municipal resources, so there’s little left to secure long-term investments.

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