نتایج جستجو برای: economic concentration
تعداد نتایج: 690863 فیلتر نتایج به سال:
Introduction to Economic Analysis is the introductory course of the theory concentration major in Economics. It is intended for students who wish to begin their formal study of economic reasoning. Its goal is to develop concepts and analytical tools that economists use to understand general social and economic phenomena. As such it relies on a higher level of abstraction and focuses on the co...
We study the pattern of geographic concentration of industries in EU countries and regions between 1972 and 1995. We find that changes in concentration levels were mainly due to industry mobility rather than historical accidents and past levels of concentration as often argued by the New Economic Geography literature.
دراین پروژه به بررسی مدل سازی خشک کردن مواد غذایی با استفاده از هوای خشک در خشک کن آزمایشگاهی نوع سینی دار پرداخته شده است. برای آنالیز انتقال رطوبت در طی خشک شدن به طریق جابجایی، یک مدل لایه نازک برای انتقال رطوبت، مبتنی بر معادله نفوذ فیک در نظر گفته شده است که شامل انتقال همزمان جرم و انرژی بین فاز جامد و گاز می باشد. پروفایل دما و رطوبت برای سه نوع ماده غذایی شامل سیب زمینی، سیب و موز در طی...
To explain the links between population distribution and economic integration, we construct a spatial economics model with endogenous fertility. A higher population concentration increases real wages and child-raising costs, thus lowering the fertility rate. However, people migrate to more populated regions to obtain higher real wages. We show that mobility across regions results in more people...
Notwithstanding there has been voluminous concern among the researchers and policymakers, the theoretical predictions and empirical evidences regarding the impact of economic integration on spatial concentration of industries are ambiguous. The paper critically reviews the theoretical and empirical literature on the issue, and presents a case study for India. The findings suggest that following...
This paper investigates the spatial concentration of Chinese manufacturing using data collected in both the second and third national industrial censuses. It is found that many of China’s manufacturing industries were highly geographically concentrated in several coastal regions in 1995. A historical comparison of the concentration levels between 1980, 1985 and 1995 suggests that manufacturing ...
OBJECTIVES Vietnam started its health reform process two decades ago, initiated by economic reform in 1986. Economic reform has rapidly changed the socio-economic environment with the transition from a centrally planned economy to a market-oriented economy. Health reform in Vietnam has been associated with the introduction of user fees, the legalization of private medical practices, and the com...
Previous studies demonstrated the environmental and economic benefits of treating lead(II)-contaminated water streams with ferrihydrite in multiple equilibrium sorption stages. In this work, multistage ferrihydrite sorption systems were evaluated for their effectiveness in reducing single-solute zinc(II) (Zn(II)) concentrations in contaminated water streams to very low levels. As for lead(II) (...
OBJECTIVE The present inquiry set to determine the economic inequality in history of stillbirth and understanding determinants of unequal distribution of stillbirth in Tehran, Iran. METHODS A population-based cross-sectional study was conducted on 5170 pregnancies in Tehran, Iran, since 2015. Principal component analysis (PCA) was applied to measure the asset-based economic status. Concentrat...
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