Econometrics Commons^™

Synthetic Control Estimation Beyond Case Studies: Does The Minimum Wage Reduce Employment?, David Powell

David Powell

Does Labor Supply Respond To Transitory Income? Evidence From The Economic Stimulus Payments Of 2008, David Powell

David Powell

Tax policy is often used to encourage consumer spending in recessions and a growing literature finds evidence that households increase short-term spending in response to receipt of tax rebates. The literature has largely ignored the effect on labor supply as rebates may crowd out labor earnings and households may consume additional leisure. The responsiveness of labor supply to transitory income has been underexplored more broadly so it is difficult to predict this labor supply effect. I exploit the randomized timing of the 2008 economic stimulus payments to study the effects of transitory income on monthly household labor earnings. Rebates can …

Teacher Quality At The High-School Level: The Importance Of Accounting For Tracks, C. Kirabo Jackson

C. Kirabo Jackson

Unlike in elementary school, high-school teacher effects may be confounded with both selection to tracks and unobserved track-level treatments. I document sizable confounding track effects, and show that traditional tests for the existence of teacher effects are likely biased. After accounting for these biases, high-school algebra and English teachers have much smaller test-score effects than found in previous studies. Moreover, unlike in elementary school, value-added estimates are weak predictors of teachers’ future performance. Results indicate that either (a) teachers are less influential in high school than in elementary school, or (b) test scores are a poor metric to measure teacher …

Do College-Prep Programs Improve Long-Term Outcomes?, C. Kirabo Jackson

C. Kirabo Jackson

This paper presents an analysis of the longer-run effects of a college-preparatory program implemented in inner-city schools that provided teacher training in addition to payments to eleventh- and twelfth- grade students and their teachers for passing scores on Advanced Placement (AP) exams. Affected students passed more AP exams, were more likely to remain in college beyond their first and second years, and earned higher wages. Effects are particularly pronounced for Hispanic students who experienced a 2.5-percentage-point increase in college degree attainment and an 11-percent increase in earnings. While the study is based on non-experimental variation, the results are robust across …

Can Higher-Achieving Peers Explain The Benefits To Attending Selective Schools?: Evidence From Trinidad And Tobago, Clement (Kirabo) Jackson

C. Kirabo Jackson

Using exogenous secondary school assignments to remove self-selection bias to schools and peers, I obtain credible estimates of (1) the effect of attending schools with higher-achieving peers, and (2) the direct effect of peer quality improvements within schools, on the same population. While students at schools with higher-achieving peers have better academic achievement, within-school increases in peer achievement improve outcomes only at high-achievement schools. Estimates suggest that peer quality can account for over half of school value-added among the top quartile of schools, but little value-added for other schools. The results reveal some large and important differences by gender.

Match Quality, Worker Productivity, And Worker Mobility: Direct Evidence From Teachers, C. Kirabo Jackson

C. Kirabo Jackson

I investigate the importance of the match between teachers and schools for student achievement. I show that teacher effectiveness increases after a move to a different school, and I estimate teacher-school match effects using a mixed-effects estimator. Match quality "explains away" a quarter of, and has two-thirds the explanatory power of teacher quality. Match quality is negatively correlated with turnover, unrelated with exit, and increases with experience. This paper provides the first estimates of worker-firm match quality using output data as opposed to inferring productivity from wages or employment durations. Because teacher wages are essentially unrelated to productivity, this is …

The Shadow Economy, Colin C. Williams, Friedrich Schneider

Colin C Williams

No abstract provided.

School Competition And Teacher Labor Markets: Evidence From Charter School Entry In North Carolina, Clement (Kirabo) Jackson

C. Kirabo Jackson

I analyze changes in teacher turnover, hiring, effectiveness, and salaries at traditional public schools after the opening of a nearby charter school. While I find small effects on turnover overall, difficult to staff schools (low-income, high-minority share) hired fewer new teachers and experienced small declines in teacher quality. I also find evidence of a demand side response where schools increased teacher compensation to better retain quality teachers. The results are robust across a variety of alternate specifications to account for non-random charter entry.

Estimating The Narcotic Effect Of Public Sector Impasse Procedures, Richard J. Butler, Ronald G. Ehrenberg

Ronald G. Ehrenberg

This paper first describes in a relatively nontechnical fashion several econometric techniques that the authors believe should be useful to industrial relations researchers. Those techniques are then applied to an analysis of whether public sector impasse procedures create a "narcotic effect," that is, a tendency for the bargaining parties, once they use the procedures, to become increasingly reliant on them in future negotiations. The authors reanalyze data from Thomas Kochan and Joan Baderschneider’s study of the impasse experience of police and firefighters under New York State’s Taylor Law during the 1968-76 period and find that while a narcotic effect did …

Human Capital Formation And Economic Development In Pakistan: An Empirical Analysis, Muhammad Irfan Chani, Mahboob Ul Hassan, Muhammad Shahid

Muhammad Irfan Chani

This study investigates the casual relationship between economic development and formation of human capital in Pakistan. Based on endogenous growth theory, this study empirically tests the standard growth model consisting of gross domestic product (GDP) per capita as a dependent variable and human capital formation, investment in physical capital and labor force as independent variables. Autoregressive distributive lag (ARDL) bound testing approach to cointegration is used to check the long-run equilibrium relationship between the variables included in the model. For checking the causal relationship between economic development and human capital formation, pair-wise Granger causality test is used for time series …

Some Socio Economic Determinants Of Fertility In Pakistan: An Empirical Analysis, Muhammad Irfan Chani, Muhammad Shahid, Mahboob Ul Hassan

Muhammad Irfan Chani

This study aims to investigate the role that various socioeconomic factors like female education, urbanization and female labour force participation play in determining fertility of women in Pakistan. ARDL bound test approach to cointegration is used to analyze the long-run relationship of the variables by using the data for the period from 1980 to 2009. The empirical results show that there exists a long-run as well as short-run relationship between fertility and urbanization, female labour force participation and female education in Pakistan. The analysis indicates there is a negative relationship between all 3 determinants with fertility. Female education and urbanization …

Selection Bias In College Admissions Test Scores, Jesse Rothstein, Melissa Clark, Diane Schanzenbach

Diane Whitmore Schanzenbach

Data from college admissions tests can provide a valuable measure of student achievement, but the non-representativeness of test-takers is an important concern. We examine selectivity bias in both state-level and school-level SAT and ACT averages. The degree of selectivity may differ importantly across and within schools, and across and within states. To identify within-state selectivity, we use a control function approach that conditions on scores from a representative test. Estimates indicate strong selectivity of test-takers in "ACT states," where most college- bound students take the ACT, and much less selectivity in SAT states. To identify within- and between-school selectivity, we …

Single-Sex Schools, Student Achievement, And Course Selection: Evidence From Rule-Based Student Assignments In Trinidad And Tobago, C. Kirabo Jackson

C. Kirabo Jackson

Existing studies on single-sex schooling suffer from biases because students who attend single-sex schools differ in unmeasured ways from those who do not. In Trinidad and Tobago students are assigned to secondary schools based on an algorithm allowing one to address self-selection bias and estimate the causal effect of attending a single-sex school versus a similar coeducational school. While students (particularly females) with strong expressed preferences for single-sex schools benefit, most students perform no better at single-sex schools. Girls at single-sex-schools take fewer sciences courses and more traditionally female subjects.

Conseil Et Coaching Intensifs Pour Demandeurs D’Emploi Âgés : Une Voie Pour Améliorer Leurs Chances Sur Le Marché Du Travail ?, Patrick P. Arni

Patrick P. Arni

(c.f. étude)

Empirical Evidence For Decreasing Returns To Scale In A Health Capital Model, Titus Galama, Patrick Hullegie, Meijer Erik, Sarah Outcault

Titus Galama

We estimate a health investment equation, derived from a health capital model that is an extension of the well-known Grossman model. Of particular interest is whether the health production function has constant returns to scale, as in the standard Grossman model, or decreasing returns to scale, as in the Ehrlich-Chuma model and extensions thereof. The model with decreasing returns to scale has a number of theoretically and empirically desirable characteristics that the constant returns model does not have. Although our empirical equation does not point-identify the decreasing returns to scale curvature parameter, it does allow us to test for constant …

Recruiting, Retaining, And Creating Quality Teachers, C. Kirabo Jackson

C. Kirabo Jackson

This article synthesizes the research literature on how to ensure that the teaching workforce is effective. It offers three approaches to improving effectiveness: attract talented individuals into the profession, create incentives for exerting optimal effort, and provide professional development so that teachers have the skills to be effective. The research literature reveals that each approach can yield meaningfully improved student outcomes and that no one strategy is clearly more effective. The policy implication of these findings is that a multifaceted approach would improve teacher effectiveness and student outcomes. However, although there are examples of successful policies, there is no consensus …

An Analysis Of Different Approaches To Women Empowerment: A Case Study Of Pakistan, Amatul R. Chaudhary, Muhammad Irfan Chani, Zahid Pervaiz

Muhammad Irfan Chani

Impacts Of Social Upbringing On Family Integration In Military Life In Sudan, Professor Issam A.W. Mohamed

Professor Issam A.W. Mohamed

In a country on the eve of losing one third of its land, 80% of potential natural resources and 75% of external exports value, economic future seems gloomy. Many opinions were given for economic solutions after the Southern Sudan secession. However, that does not support a theoretical framework that those are the only reasons for the expected economic collapse. Our theory here is that such collapse already happened because of economic mismanagement, corruption and hoarding initiated by the calls for empowerment and carried out by the regime's members. Such acts extended to the banks, economic institutions and randomized privatization. The …

Multinational Companies And Investments In Sudan: Case Study Of Oil Exploration And Extraction, Professor Issam A.W. Mohamed

Professor Issam A.W. Mohamed

The purpose of this paper is to present the role of multinational companies in general then its role in Sudan with particular emphasis on oil exploration and extraction. Chinese companies of multinationalities currently control the newly born oil industry in the country. Needless to say that the dire needs of the government because of its international isolation and sanctions compelled it to be subjected to bellow standards conditions in all economic and environmental aspects. The government accepted the conditions for the past twelve years. However, the secession of Southern Sudan into new country gives better re-negotiations opportunity to the newly …

Impacts Of Formal Financing On The Development Of The Sudanese Agricultural Sector, Issam A.W. Mohamed Professor

Professor Issam A.W. Mohamed

The agricultural sector of Sudan is faced by many problems. In the irrigated schemes, the government who officially owns most of them there are entrenched managerial problems that brewed for more than six decades. Moreover, the privatization policies of those schemes provoked many outcries and protests. Large schemes like Gezira have collapsed, this year 2011, only 10% of its over one million hectares were cultivated. The rainfed farming is not different with lack of machineries, shortages of available labor and high priced agricultural inputs, it is not expected to fare better than the irrigated schemes. However, even if those problems …

African Economic Blocs And Trade: Case Study Of Comesa And Sudan, Issam A.W. Mohamed Professor

Professor Issam A.W. Mohamed

Comprehensively, Economic Trade Partnerships and Blocs are important to a member country. However, with the continuing global financial distresses it is useful to evaluate them to maximize possible benefit. The question of joining, continue membership with the Comesa is vital to the Sudanese economy that presently stands in a very decisive time. The Common Market for Eastern and Southern Africa is a free trade area with nineteen member states stretching from Libya to Zimbabwe. COMESA formed in December 1994, replacing a Preferential Trade Area which had existed since 1981. Nine of the member states formed a free trade area in …

Economic Papers Online, Issam A.W. Mohamed Professor

Professor Issam A.W. Mohamed

Those are economic papers online on the pages of Econpaper by Issam AW Mohamed

Review Of The Role Of Agriculture In Sudan Economy, Issam A.W. Mohamed Professor

Professor Issam A.W. Mohamed

The calamities of Sudan expand on daily basis. The secession of Southern Sudan has deprived the country of 25% of it total area, 24% of population, over 80% of its oil income. Moreover, it has separated with 75% of it vegetation cover and 30% of potential arable land. In addition, Sudan stands to tolerate at least 25% of its water resources. Economic situation precarious with the Darfur rebellions, the inception of Southern Kordofan's region civil strive and the inflamed complaints in its Blue Nile region. That resulted besides deprivation of oil revenues and other potentials to increased cost of national …

Effects Of The Humanitarian Aid, Internal Displacement On The Social Impacts In Sudan, Professor Issam A.W. Mohamed

Professor Issam A.W. Mohamed

The study presented here reviews activities of NGOs in Sudan by surveying and studying the activities of Save the Children of United Kingdom. Activities of NGOs in Sudan were always a controversial issue that resulted in the expulsion of many in 2009. There were also precedents of such expulsions in previous and following years. The paper discusses humanitarian work in Sudan, positive and negative sides. The case study's activities of the Save the Children efforts in Jebel Aulia Internally Displaced People, specially their efforts in education were investigated. It is concluded that introduce invaluable help in educational field, building classes …

Global Financial Crisis And Effects On The Agricultural Sector Of Sudan, Issam A.W. Mohamed Professor

Professor Issam A.W. Mohamed

The severe impacts of the global financial crisis had effects on all world. However, in Sudan scientists and researchers were greatly shocked because of the governmental camouflaging on their real effects on the economy. Minister of National Economy and Finance denied the effects on the Sudanese economy. The governor of the Sudan Central bank did the same with emphasis from both that everything are quite and normal and that Sudan can absorb all shocks on its economic performance. Truly, they ave eaten their words in the following months and confessed the partial effects on the Sudanese economy. Moreover, after they …

Thieves Or Doctors, Armed Civil Conflicts In Darfur And Impacts On Education In Refugees Camps, Professor Issam A.W. Mohamed

Professor Issam A.W. Mohamed

The study presented here depends on a field survey of refugees' camps in war strived Darfur region. The data are genuine from people and children. The expelling of NGOs from the region was a moral shock to the whole world, but in Darfur, it was a humanitarian catastrophe affecting the population. In this paper, I surveyed and analyzed data on what I consider the most important factor which are children and establish education as the base of the arguments introduced here. A case study is introduced which is Attash refugees or displaced camp were produced. Data were collected by field …

Impacts Of Sudan Macroeconomic Policy On Agriculture, Issam A.W. Mohamed Professor

Professor Issam A.W. Mohamed

The crisis of Southern Sudan and eminent secession in 9 July 2011 is a nightmare to the Sudanese national economy. The dependence on oil revenue that controlled the country for the past 11 years and negligence of the other real economy's economic sectors, agriculture and industry severely threatens the country. That is not only with diminished returns but with also with economic nightmarish economic catastrophe, famine and internal implosion. Short-sightedness on utilizing the oil money that bubbled the economy atrophied the real economic sectors and disabled it from responding to secession consequences of parting with 75% of revenues from oil …

The Crisis Of A Nation (1), Professor Issam A.W. Mohamed

Professor Issam A.W. Mohamed

This is the first part of a book I started writing in the year 2008 under the title of Sad Triology: The Crisis of a Nation. I name this chapter the Delirium as it represents the political response to what happens in the country due to the international outrage and pressures to Darfur Crisis. This part is narrating pressures on Sudan's Inqaz regime, specially after the Darfur region crisis and civil wars, the rage of the international society and responses, the impacts of the International Instututions including the ICC and the hunt for justice. All those qualitative variables had responses …

Wto-Doha Multilateral Trade Negotiations And Agriculture, Professor Issam A.W. Mohamed

Professor Issam A.W. Mohamed

The Doha Development Round or Doha Development Agenda (DDA) is the current trade-negotiation round of the World Trade Organization (WTO), which launched in November 2001. With the start of this round, non-trade concerns (NTCs) were explicitly renowned and integrated into the negotiation process. Generally, multi-functionality proponents attempt to resist agricultural trade liberalization by giving high support to protect their domestic producers. These are net food importing countries, some small countries with highly protected agricultural sector and large trade deficits in some main outputs and unfavourable agro-climatic conditions. The opponents of the multi-functionality argument all claim to recognize the legitimacy of …

Empowerment, Corruption And Economic Chaos In Sudan, Professor Issam A.W. Mohamed

Professor Issam A.W. Mohamed

In a country on the eve of losing one third of its land, 80% of potential natural resources and 75% of external exports value, economic future seems gloomy. Many opinions were given for economic solutions after the Southern Sudan secession. However, that does not support a theoretical framework that those are the only reasons for the expected economic collapse. Our theory here is that such collapse already happened because of economic mismanagement, corruption and hoarding initiated by the calls for empowerment and carried out by the regime's members. Such acts extended to the banks, economic institutions and randomized privatization. The …