Economic modeling in the presence of endogeneity is subject to model uncertainty at both the instrument and covariate level. We propose a Two-Stage Bayesian Model Averaging (2SBMA) methodology that extends the Two-Stage Least Squares (2SLS) estimator. By constructing a Two-Stage Unit Information Prior in the endogenous variable model, we are able to efficiently combine established methods for a...

In this paper, we extend Bai and Perron’s (1998, Econometrica, p.47-78) framework for multiple break testing to linear models estimated via Two Stage Least Squares (2SLS). Within our framework, the break points are estimated simultaneously with the regression parameters via minimization of the residual sum of squares on the second step of the 2SLS estimation. We establish the consistency of the...

The two-stage least-squares inferential statistics (2SLS-IS) scripts in R provided here help to discriminate the quality of results in regression models, improving on prototypes by Dow (2007) and Eff and Dow (2009) that implemented a new two-stage least squares (2SLS) standard for regression models with missing data imputation and controls for autocorrelation. Major 2SLS-IS modeling improvement...

يديوتامورلا لصافلما باهتلا ضيرم180 ةساردلا تلمش :جئاتنلا عافترا نأ جئاتنلا ترهظأ .)اًماع 40.49±12.19 رمعلا طسوتم( يف LDL لدعم و )55.1%(لورتسلوكلا لدعم عافترا راشتنا لدعم عافترا ينب ةيئاصحإ ةوق تاذ ةقلاع دوجو نع تفشك .)51.2%( ىلع ةولاعو .)p=0.002( CRP لا هبسن عافترا و لورتسيلوكلا طاشنو يلكلا لورتسلوكلا ينب ةيباجيإ ةقلاع دوجو انظحلا ،كلذ طاقن رخآ ضرم ةكرتشلما اًماع 28 مادختساب اهسايق تم امك ،ضرلما ...

The effect of base temperature variation on the heat transfer from unsteady state annular heat sink of cooling microelectronic device. Three types of the base temperature variation equations are taken in the present study. The Sine wave variation, Cosine wave variation & exponential variation of the base temperature. The finite element technique based on Galerkin method with axisymmetric rectan...

سابقه و هدف: امروزه صنعتی شدن توسعه شهرنشینی باعث آلودگی هوا در اکثر کلان‌شهرهای جهان شده است سالانه میلیون­ ها نفر به ­علت جان خود را از دست می­ دهند. ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ ﻣﺤﺪود ﺑﻮدن ﺷﺒﻜﻪ اﻳﺴﺘﮕﺎه‌ﻫﺎى ﭘﺎﻳﺶ آﻻﻳﻨﺪه‌ﻫﺎى ﻫﻮا ﻏﻴﺮ اﻗﺘﺼﺎدى اﻓﺰاﻳﺶ ﺗﻌﺪاد این اﻳﺴــﺘﮕﺎه‌ﻫا سطح شهرها، دﺳﺖ‌ﻳﺎﺑﻰ ﭘﻮﺷــﺶ ﻣﻜﺎﻧﻰ زﻣﺎﻧﻰ ﻣﻨﺎﺳــﺐ برای ﻧﺸﺎن دادن ﺗﻐﻴﻴﺮات ﻏﻠﻈﺖ ذرات آلاینده ﺑﺴﻴﺎر دﺷﻮار اﺳﺖ. بر اساس پژوهش حاضر با هدف تهیه نقشه ­ها...

سابقه و هدف: آب هوای یک منطقه در دوره بلندمدت را اقلیم گویند. شناسایی طبقه‌بندی اقلیمی از دیرباز مورد توجه متخصصان هواشناسی بوده است. محققان با به کارگیری روش ­های مختلف استفاده متغیرهای همچون بارش دما، زمین مناطق همگن طبقه ­بندی کرده‌اند نتایج پهنه‌بندی ارزیابی کمبود منابع مقیاس­ های کوچک بزرگ منظور پیش‌بینی اقدامات عملی برای کنترل خشکی آسیب‌پذیر به‌کار برده‌اند. هدف این تحقیق به‌‌روزرسانی تحل...

In a seminal paper Nagar (1959) obtained …rst and second moment approximations for the k-class of estimators in a general static simultaneous equation model under the assumption that the structural disturbances were i.i.d and normally distributed.Later Mikhail (1972) obtained a higher-order bias approximation for 2SLS under the same assumptions as Nagar while Iglesias and Phillips (2010) obtain...

This paper reports findings from an AHRC-funded project into the use of more than one language in research projects. Using 35 seminar presentations and 25 researcher profiles, we investigated how researchers from differing disciplines became aware of the possibilities, complexities, and emerging practices of researching where more than one language is used: for example, in initial research desi...

Variations of heavy metals concentrations (Pb, Zn, Ni and Cd) in suspended matter as well as the physical properties (temperature, salinity, dissolved oxygen and pH) at five coastal sites and one reference station (offshore) were measured on seasonal base of the year 2005. Seasonal variations of seawater temperature, salinity, pH and dissolved oxygen were significant different, meanwhile; spati...