Does International Migration Affect Labor Supply,Non‐farm Diversification and Welfare of Households? Evidence from Egypt

This study examines the effect of international migration in Egypt using fixed‐effect regressions and panel data from Egypt Labour Market Panel Surveys in 2006 and 2012. We find that men and people with higher education are more likely to migrate than women and people with lower education. Middle‐aged people are also more likely to migrate than young or old people. International migration does not seem to affect the overall employment of remaining members of migrant‐sending households. However, it tends to increase the self‐employed work of members of migrant‐sending households. Finally, international migration also helps migrant‐sending households increase their wealth index. Remittances are used to improve living conditions (housing) and purchase more assets and durables. This finding supports the theory as well as the policy to increase migration as a way to stabilize consumption and reduce poverty in low income countries.     

Optimization techniques for multivariate least trimmed absolute deviation estimation

Given a dataset an outlier can be defined as an observation that does not follow the statistical properties of the majority of the data. Computation of the location estimate is of fundamental importance in data analysis, and it is well known in statistics that classical methods, such as taking the sample average, can be greatly affected by the presence of outliers in the data. Using the median instead of the mean can partially resolve this issue but not completely. For the univariate case, a robust version of the median is the Least Trimmed Absolute Deviation (LTAD) robust estimator introduced in Tableman (Stat Probab Lett 19(5):387–398, 1994), which has desirable asymptotic properties such as robustness, consistently, high breakdown and normality. There are different generalizations of the LTAD for multivariate data, depending on the choice of norm. Chatzinakos et al. (J Comb Optim, 2015) we present such a generalization using the Euclidean norm and propose a solution technique for the resulting combinatorial optimization problem, based on a necessary condition, that results in a highly convergent local search algorithm. In this subsequent work, we use the \(L^1\) norm to generalize the LTAD to higher dimensions, and show that the resulting mixed integer programming problem has an integral relaxation, after applying an appropriate data transformation. Moreover, we utilize the structure of the problem to show that the resulting LP’s can be solved efficiently using a subgradient optimization approach. The robust statistical properties of the proposed estimator are verified by extensive computational results.     

Leadership and Overload Stress Orientations of German and Russian Working Adults: Does Government Work Experience Make a Difference?

This paper examines task, relationship, and overload stress orientations of people in the high-context cultures of Russia and in the low-context cultures of Germany based on their government work experience. A Two-way ANOVA methodology is used for hypotheses testing in this research. As a result of the comparative, cross-national analysis of 462 responses, some significant differences were found between the two samples. Russians have higher scores on task and relationship orientations than German respondents. There is a marginally significant difference in the task scores between respondents who have government experience and those who do not. Respondents who have government experience are more task-oriented and experience more stress than those who do not have government experience. Finding reveals significant interaction between government experience and country in the task scores. Literature on German and Russian cultures is presented along with practical applications, suggestions, and implications for future studies.     

Flood-resilient urban design based on the indigenous landscape in the city of Can Tho,Vietnam

Urban Ecosystems - Natural conditions and indigenous culture are fundamental factors creating the hydrological landscape system of the Vietnamese Mekong Delta. A study of the indigenous landscape...     

‘We share similar struggles’: how a Vietnamese immigrant youth organizing program shapes participants’ critical consciousness of interracial tension

This article examines Homeward Bound, a political education youth organizing program for Vietnamese immigrant youth in Philadelphia, Pennsylvania. Inspired by Paulo Freire’s critical pedagogy theory, the program sought to empower learners to challenge their pre-existing knowledge and experience of interracial relations. Drawing on data from observations, interviews, and document reviews, we describe the process by which the program shaped Vietnamese immigrant youth’s critical consciousness of Vietnamese/Asian-black interracial tension. While some participants expressed apprehension and prejudice toward African Americans, particularly in the early days of the program, by the end, participants demonstrated knowledge retained from lessons and activities on the shared history of Vietnamese immigrants and African Americans. Participants also identified roots of and offered solutions to interracial tension. This study illuminates the role of immigrant youth organizing programs in resolving interracial tension in multiracial contexts.     

Channels of monetary policy transmission in Vietnam

Since the economic reforms launched in 1986, the Vietnamese economy has registered impressive economic growth. While foreign investment is providing much needed capital, through the conduct of monetary policy, the State Bank of Vietnam (SBV), which is an integral part of the government of Vietnam, is also playing an important role in nurturing the economic growth. The aim of this paper is to evaluate the success of the SBV policies. Monetary policy actions affect all sectors of real economies with a significant lag. Without a good understanding of the transmission mechanism, monetary policy actions may not achieve the desired outcomes. Using quarterly data from 1995 to 2010, this paper focuses on monetary policy transmission mechanisms in Vietnam. Specifically, we consider the dynamic response of the Vietnamese economy to interest rate, exchange rate and foreign shocks. The estimated results based on structural vector autoregressive (SVAR) methodology suggest that monetary shocks tend to have a strong influence on Vietnam’s output. We find that Vietnam’s monetary policy is relatively more susceptible to foreign shocks.     

Roles of Vegetable Surface Properties and Sanitizer Type on Annual Disease Burden of Rotavirus Illness by Consumption of Rotavirus-Contaminated Fresh Vegetables: A Quantitative Microbial Risk Assessment

Enteric viruses are often detected in water used for crop irrigation. One concern is foodborne viral disease via the consumption of fresh produce irrigated with virus-contaminated water. Although the food industry routinely uses chemical sanitizers to disinfect post-harvest fresh produce, it remains unknown how sanitizer and fresh produce properties affect the risk of viral illness through fresh produce consumption. A quantitative microbial risk assessment model was conducted to estimate (i) the health risks associated with consumption of rotavirus (RV)-contaminated fresh produce with different surface properties (endive and kale) and (ii) how risks changed when using peracetic acid (PAA) or a surfactant-based sanitizer. The modeling results showed that the annual disease burden depended on the combination of sanitizer and vegetable type when vegetables were irrigated with RV-contaminated water. Global sensitivity analyses revealed that the most influential factors in the disease burden were RV concentration in irrigation water and postharvest disinfection efficacy. A postharvest disinfection efficacy of higher than 99% (2-log₁₀) was needed to decrease the disease burden below the World Health Organization (WHO) threshold, even in scenarios with low RV concentrations in irrigation water (i.e., river water). All scenarios tested here with at least 99.9% (3-log₁₀) disinfection efficacy had a disease burden lower than the WHO threshold, except for the endive treated with PAA. The disinfection efficacy for the endive treated with PAA was only about 80%, leading to a disease burden 100 times higher than the WHO threshold. These findings should be considered and incorporated into future models for estimating foodborne viral illness risks.     

Impact of finance on growth: Does it vary with development levels or cyclical conditions?

Financial systems are complex and may support economic growth differently at various stages of economic development. This study of 90 countries extends the financial development-economic growth literature by using four proxies of financial development (banking, stock market, bond market and insurance), and considering a country’s level of economic development, on both a full and pre-global crisis sample. As expected financial markets have different effects on growth where the level of economic development vary. Policy makers should find that the insurance sector offers the most benefit for economic growth at all levels of development. Stock markets promote growth for middle income countries. Similarly bond markets promote growth with middle and high income countries. Some bond market and stock market results differed in the pre-crisis sample. Policies which promote trade but limit other areas such as inflation, government consumption and crises, should also support growth.     

Supplier integration and firm performance: the moderating effects of internal integration and trust

This study proposes and empirically tests a model of the moderating effects of internal integration and trust on the impacts of information, process and strategic integration with suppliers on firm performance using structural equation modelling and data collected from 261 manufacturing firms in Vietnam. The results show that all three types of supplier integration positively associate with firm performance. Internal integration enhances the impact of process integration with suppliers on firm performance, but does not moderate the impacts of information and strategic integration with suppliers. Internal trust has insignificant, positive and negative influences on the effects of information, process and strategic integration with suppliers on firm performance. The findings show that internal integration and trust play different roles in moderating the positive effects of information, process and strategic integration with suppliers on firm performance, which elucidates a possible reason for previous mixed findings on the relationship between supplier integration and firm performance.     

The limitations of the Arrovian consistency of domains with a fixed preference

Theory and Decision - In this paper I investigate the properties of social welfare functions defined on domains where the preferences of one agent remain fixed. Such a domain is a degenerate case...