مطالب مرتبط با کلیدواژه
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Spatial Econometrics
حوزه های تخصصی:
In today’s world, non-oil exports contribute significantly to national economics. Empirical studies on exports show that enterprises’ exports are affected by a variety of factors, including investment in R&D. However, exports of neighboring provinces are also influential. The present study investigates the effect of R&D intensity on the export performance of industrial enterprises in certain provinces of Iran during the years 2000-2015 using the spatial econometrics approach. The results of the study show that R&D intensity has a positive and significant effect on improving the export performance of industrial enterprises. Other explanatory variables such as the rate of economic growth, human capital, inflation, the size of industry and industrialization have also been examined, which prove to have a positive and significant effect on export performance of industrial enterprises. JEL classification: J24, F41, F14.
Spatial Spillover Effect of Public Infrastructure in Different GDP Sector Compositions: Spatial Panel Evidence in Eu-28 Regions(مقاله علمی وزارت علوم)
حوزه های تخصصی:
Spillovers have attracted wide attention in the areas of research in economics during the past decades. The reason for the interest in the topic lies in their important role in endogenous growth theory and the explanation of productivity growth. This paper investigates the spatial spillover of different types of public infrastructure on economic growth across EU-28 NUTS-II regions during 1995-2015. Particularly, we developed the previous studies by consedeing spillover in all types of the GDP sector composition including agriculture, industry, and services. The spatial Durbin panel data model is employed to consider spatial spillovers of both public infrastructure and economic growth. Empirical results show the positive spatial spillovers of communication infrastructure in all the sectors. The spillover effect of transport infrastructure is positive in the service and agricultural sector, whereas it is negative in the industry sector. Moreover, the spillover effect of local infrastructure is insignificant in all three sectors. Finally, we find significant evidence of positive geographical spillovers of economic growth implying spatially-growth dependency of regions to growth rate of neighboring regions. JEL Classification: H54, O47, C21
The Effect of Divorce on Urban Housing Costs in Iran: A Spatial Autocorrelation Model(مقاله علمی وزارت علوم)
حوزه های تخصصی:
In addition to traditional factors, demographic changes also depend on factors such as marriage and divorce. Yet only a few researchers investigated the impact of divorce on housing costs. The aim of this paper is to estimate the effect of divorce on housing costs in Iran. Doing so, we have applied a fixed Panel Spatial Autocorrelation model using the data from a set of Iranian provinces over the period of 2006-2014. The results indicate that a one-percent point rise in divorce increases housing rental index by about 1.05% point directly and indirectly. The outcomes also show that household size has a negative and significant effect, but the per capita gross domestic product and the population have positive and significant effects on the housing rental index. On average, a one-percent point increase in the housing rental index of any provinces will increase the housing rental index in a province by about 0.34 percentage points.
The spillover effect of foreign direct investment on regional growth in Iran: Spatial econometric analysis(مقاله علمی وزارت علوم)
حوزه های تخصصی:
According to the economic literature, foreign direct investment (FDI) has the main role in the growth of countries. Therefore, the main goal of present study is to examine the direct and indirect (spatial) effect of FDI on growth of GDP in different regions of Iran using the spatial econometric model. For this purpose, the data of 30 provinces of Iran during 2010-2018 has been used. The spatial weight matrix (W), is considered based on the contiguity of the regions. The results of model showed that FDI had a positive direct and spillover effects on growth of regions. Also, government spending in the regions, increase of financial credits and human capital had a direct positive effect on economic growth of the region's economy. The spillover effects of two variables, FDI and financial development, was significant. Meanwhile, the spatial (indirect) effect of FDI was positive, but the indirect (spillover) effect of financial development was negative.
تحلیل تأثیر تحریم ها بر بخش مسکن شهری دولت های رانتیر (مورد مطالعه: شهرهای ایران)(مقاله علمی وزارت علوم)
منبع:
اقتصاد و مدیریت شهری سال ۱۱ پاییز ۱۴۰۲ شماره ۴۴
199 - 225
حوزه های تخصصی:
پژوهش حاضر در خصوص فرآیند رشد و توسعه شهرنشینی به عنوان یک پدیده برون زا و بر پایه رشد خدمات شکل گرفته است که محصول روابط نابرابر اقتصادی و اجتماعی با کشورهای توسعه یافته صنعتی به همراه کاتالیزور تصمیمات فرداست است. این پزوهش با استفاده از روش تحلیلی و رویکرد کمی انجام شده است و به بررسی تأثیر تحریم ها بر بخش مسکنِ در فاصله زمانی 1385 تا 1396 پرداخته شده است. برای تبیین مدل تحقیق پنج دسته عوامل سیاسی، اقتصادی، نهادی، اجتماعی و کالبدی در نظر گرفته شدند. در این مطالعه با استفاده از مدلهای اقتصاد سنجی فضایی با سه نوع داده مقطعی، سری زمانی و تلفیقی اقدام به بررسی داده ها شد. باتوجه به عدم دسترسی و فقدان اطاعات کافی در دوره آماری مذکور، در خصوص شاخص های مورد مطالعه، ابتدا شهرهای مراکز استان و سپس شهرهای ناحیه ای درجه ۲ و درجه ۳ مورد ارزیابی قرار گرفتند. به علاوه، با استفاده از داده های شهرهای کشور مدل رشد قیمت مسکن با استفاده از مدل خطای فضایی مورد تحلیل قرار گرفت. به دلیل وجود ناهمسانی واریانس در این مدل از برآورد گر KP - HET استفاده شده است. نتایج حاصل از این مطالعه بیانگر وجود اثرات فضایی تحریم در رشد قیمت مسکن شهرهای کشور طی بازه مورد مطالعه است. به صورتی که از بین متغیرهای اقتصادی؛ شاخص فقر، نرخ بیکاری و تخصصی شدن و از بین متغیرهای اجتماعی میزان مهاجرت، نرخ باروری عمومی و جمعیت فعال به عنوان مهمترین عوامل مؤثر بر رشد قیمت مسکن ارزیابی شدند. که این متغیرها هم به نوعی علت و هم معلول سازمان نیافتگی یک الگوی منسجم رشد قیمت در ادوار بعدی بوده اند.