نتایج جستجو برای: panel data method
تعداد نتایج: 3667565 فیلتر نتایج به سال:
Difference-in-differences with matching is a popular method to measure the impact of an intervention in health as well as social sciences. This method requires baseline data, i.e., data before interventions, which are not always available in reality. Instead, panel data with two time periods are often collected after interventions begin. In this paper, a simple matching method is proposed to me...
introduction: the area under cultivation and yield of crops are affected by various factors, some of which are controllable and some others are uncontrollable. controllable factors are divided into two types of price and non-price factors. among the price factors, prices of agricultural products and inputs play an important role in expanding the cultivation area. uncontrollable factors also hav...
This paper proposes a quantile regression estimator for a panel data model with interactive effects potentially correlated with the independent variables. We provide conditions under which the slope parameter estimator is asymptotically Gaussian. Monte Carlo studies are carried out to investigate the finite sample performance of the proposed method in comparison with other candidate methods. Th...
corruption defined as abuse of power by governmental officials for personal goals.in recent years, many articles about determinants of corruption have been written that introduced so many variables as determinants of corruption. these factors can be divided into two categories: economic and non-economic factors.in these article we examine the effect of economic activities combination on corrupt...
this study investigated how group formation method, namely student-selected vs. teacher-assigned, influences the results of the community model of teaching creative writing; i.e., group dynamics and group outcome (the quality of performance). the study adopted an experimental comparison group and microgenetic research design to observe the change process over a relatively short period of time. ...
due to extraordinary large amount of information and daily sharp increasing claimant for ui benefits and because of serious constraint of financial barriers, the importance of handling fraud detection in order to discover, control and predict fraudulent claims is inevitable. we use the most appropriate data mining methodology, methods, techniques and tools to extract knowledge or insights from ...
abstract according to increase in electricity consumption in one hand and power systemsreliability importance in another , fault location detection techniqueshave beenrecentlytaken to consideration. an algorithm based on collected data from both transmission line endsproposed in this thesis. in order to reducecapacitance effects of transmission line, distributed parametersof transmission line...
به منظور بررسی تاثیر ویزگیهای درون شرکتی بر اهرم مالی در شرکتهای پذیرفته شده در بورس اوراق بهادار تهران 52 شرکت فعال از سال1383 تا1387 در بورس اوراق بهادار تهران به عنوان نمونه انتخاب گردیده است.برای انجام اینکار از ترکیب داده های مقطعی و سری زمانی (داده های تلفیقی ) استفاده میشود. به اینصورت که با استفاده از متدولوزی داده های تلفیقی (panel data) رابطه بین متغیرها ارزیابی و آزمون میشود و برای ب...
این پژوهش با هدف بررسی تاثیر صنعت بانکداری بر بهبود فضای کسب و کار در کشورهای منتخب توسعه یافته و در حال توسعه طی سال های 2008 تا 2012 صورت گرفته است. رتبه فضای کسب و کار که از طریق شاخص های 10گانه مطرح در بانک جهانی بدست می آید، بعنوان متغیر وابسته در نظر گرفته شده است. ضریب نفوذ بانکداری و ضریب تراکم بانکداری، متغیرهای مستقل مدل در نظر گرفته شده اند. برای بررسی فرضیه های پژوهش از مدل پانل دیت...
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