نتایج جستجو برای: heckman two stage analysis

تعداد نتایج: 4895346  

2009
Christian Helmers Natalia Trofimenko

We evaluate the impact of firm-specific export subsidies on exports in Colombia. Using a two-stage Heckman selection procedure, we obtain firm-specific predicted subsidy amounts that can be explained by the characteristics that determine the firms’ eligibility for the government support and its amount. Drawing on the accounts of the discretionary allocation of subsidies in developing countries,...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم انسانی 1392

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. ...

2006
Raghbendra Jha Raghav Gaiha Anurag Sharma

This paper tests for the existence of a Poverty Nutrition Trap (PNT) in the case of the nutrient most likely to have productivity impacts, i.e., calories, for three categories of wages – sowing, harvesting, and other – and for male and female workers separately. We use household level national data for rural India for the period January to June 1994. We use robust sample selection procedures du...

Journal: :Sustainability 2021

The previous literature has demonstrated that countries’ regulative contexts positively influence voluntary corporate carbon disclosures. However, little research been conducted into the relationship between different components of dimension institutions and disclosure. Drawing on theoretical framework New Institutional Sociology (NIS), this study examines context (rules; monitoring mechanisms ...

Journal: :Sustainability 2021

With data from 683 systematically selected households, the study employed Heckman two-stage model and propensity score matching method (PSM) to examine impact of youth participation in agriculture as a primary occupation on income poverty Nigeria. The results indicate that gender their determination stay significantly increases probability will participate occupation. In addition, main contribu...

M. Nabahat,

Data envelopment analysis is a nonparametric technique checking efficiency of DMUs using math programming. In conventional DEA, it has been assumed that the status of each measure is clearly known as either input or output. Kao and Hwang (2008) developed a data envelopment analysis (DEA) approach for measuring efficiency of decision processes which can be divided into two stages. The first stag...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - پژوهشکده ادبیات 1391

the major purpose of this study was to develop the translation teacher competency test (ttct) and examine its construct and predictive validity. the present study was conducted in two phases: a qualitative phase as well as a quantitative phase. in the first phase of the study, the author attempted to find out the major areas of competency required for an academic translation teacher. the second...

Journal: :Bulletin des Sciences Mathématiques 2016

ژورنال: اندیشه آماری 2018

‎Maximum likelihood estimation of multivariate distributions needs solving a optimization problem with large dimentions (to the number of unknown parameters) but two‎- ‎stage estimation divides this problem to several simple optimizations‎. ‎It saves significant amount of computational time‎. ‎Two methods are investigated for estimation consistency check‎. ‎We revisit Sankaran and Nair's bivari...

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