This paper examines the effects of different child-care arrangements on children’s cognitive and social proficiencies at the start of kindergarten. Using data from the Early Childhood Longitudinal Study, we identify effects using OLS, matching and instrumental variables estimates. Overall, center-based care raises reading and math scores, but has a negative effect for socio-behavioral measures....

The present study attempts to test the mechanisms of Export Led Growth in India by taking a timeseries data from 1980-81 to 2008-09. It applies Ordinary Least square (OLS) method to investigate the relationship between Gross National Product, Total Exports, Manufactured Exports and Investment. The results of the study supports the Export Led growth Hypothesis (ELGH) in India.

It is difficult to build an accurate model to predict the dynamic error of CMM by analyzing error sources. An innovative modeling method based on Variance Analysis and Improved Partial Least-square regression (IPLSR) is proposed to avoid analyzing the interaction of error sources and to overcome the multi-collinearity of Ordinary Least-square regression (OLSR). Among many impact factors the mos...

Zimbabwe’s economy declined between 2000 and 2009. This study detects the economic decline in different regions of Zimbabwe using nighttime light imagery from the Defense Meteorological Satellite Program’s Operational Linescan System (DMSP-OLS). We found a good correlation (coefficient = 0.7361) between Zimbabwe’s total nighttime light (TNL) and Gross Domestic Product (GDP) for the period 1992 ...

Historically, the Defense Meteorological Satellite Program’s Operational Linescan System (DMSP-OLS) was the unique satellite sensor used to collect the nighttime light, which is an efficient means to map the global economic activities. Since it was launched in October 2011, the Visible Infrared Imaging Radiometer Suite (VIIRS) sensor on the Suomi National Polar-orbiting Partnership (NPP) Satell...

The poor academic performance of students of Nigerian tertiary institution has been a major concern. This paper, however, considers the mode of selection for admission via the University Matriculation Examination (by JAMB), the Post University Matriculation Examination, as well as academic performance after first year in the University. Using the Ordinary Least Square (OLS) method of estimating...

This paper investigates the long-run relationship among new hiring, unemployment (job seekers), and unfilled vacancies in Japan, using an annual panel data on 47 prefectures for 1972-1999. We find that these three variables are Ið1Þ processes, and are cointegrated in our panel data. Further, we estimate the panel cointegration equation derived from a Cobb-Douglas matching function by the hetero...

ABSTRACT Proto ols or part of proto ols are frequently reused through proje ts if they are suÆ iently generi . For instan e, the Contra t Net proto ol an be used verbatim or in other proto ols su h as the supply hain management. This reusability might be diÆ ult to do due to the la k of reusability in urrent intera tion proto ol formalisms. In this paper, we present a new approa h based on a mo...

Wheel structures of the Orthogonal Latin Squares (OLS) polytope (PI) are presented in [2]. The current work focuses on the families of valid inequalities arising from wheels and proves that certain among them are facet-defining for PI . For two of these families we provide efficient separation procedures. We also present results regarding odd-hole inequalities, which essentially form a larger c...

This paper employs recently developed techniques for testing hypotheses in cointegrated panels to test the strong version of purchasing power parity for a panel of post Bretton Woods data. We compare results using fully modiŽ ed and dynamic OLS approaches , and strongly reject the hypothesis . We also introduce a new between-dimensio n dynamic OLS estimator and Ž nd that the between-dimensio n ...