Results 41 to 50 of about 886,606 (188)

On the Estimation of Separable Demand Models

Journal of Agricultural and Resource Economics, 1993
Alternative stochastic specification of conditional demand models are considered. The results of LaFrance concerning the inconsistency of least squares are supported, but the class of models that allow standard instrumental variable estimation is ...
David L. Edgerton
doaj   +1 more source

Genetic causal relationship between age at menarche and benign oesophageal neoplasia identified by a Mendelian randomization study

Frontiers in Endocrinology, 2023
ObjectiveThe occurrence and development of oesophageal neoplasia (ON) is closely related to hormone changes. The aim of this study was to investigate the causal relationships between age at menarche (AAMA) or age at menopause (AAMO) and benign ...
Yani Su, Yani Su, Yani Su, Yunfeng Hu, Yiwei Xu, Yiwei Xu, Yiwei Xu, Mingyi Yang, Fangcai Wu, Fangcai Wu, Fangcai Wu, Yuhui Peng, Yuhui Peng, Yuhui Peng   +13 more
doaj   +1 more source

The effect of fire-induced pollution on respiratory health:

Biodiversidade Brasileira, 2019
Relevant uncertainty remains regarding the magnitude of the effect on respiratory illnesses caused by fires detected in the Brazilian Amazon. Available studies are not grounded in an explicit statistical strategy to identify the effect of fires on ...
Thiago Fonseca Morello, José Gustavo Feres, Damaris Bento, Demerval Moreira   +3 more
doaj   +3 more sources

Instrumental Variables, Local Instrumental Variables and Control Functions [PDF]

We consider the identification of the average treatment effect in models with continuous endogenous variables whose impact is heterogeneous. We derive a testable restriction that allows us to assess the degree of unobserved heterogeneity.
Florens, Jean-Pierre, Heckman, James, Meghir, Costas, Vytlacil, Edward   +3 more
core   +3 more sources

Integrating endogeneity in survey sampling using instrumental-variable calibration estimator

Heliyon
The endogeneity problem arises when the auxiliary variables correlate to the error terms. In such cases, appropriate instrumental variables ensure efficient estimation.
Muhammad Nadeem Intizar, Muhammad Ahmed Shehzad, Haris Khurram, Soofia Iftikhar, Aamna Khan, Abdul Rauf Kashif   +5 more
doaj   +1 more source

How does bribery affect the wage performance of formal firms? Instrumental variables and matching evidence from Nigeria

South African Journal of Economic and Management Sciences, 2020
Background: There is an ongoing debate about the effects of bribery on economic performance, where strong arguments are made on the opposing sides. This article investigates the relationship between bribery and the level of workers’ wages. The study is a
Tobechi F. Agbanike, George A. Agwu, Uwazie I. Uwazie, Kevin O. Onwuka, Lasbrey I. Anochiwa, Michael O. Enyoghasim, Anayochukwu Basil Chukwu, Kalu E. Uma   +7 more
doaj   +1 more source

Quasi-Bayesian analysis of nonparametric instrumental variables models

, 2013
This paper aims at developing a quasi-Bayesian analysis of the nonparametric instrumental variables model, with a focus on the asymptotic properties of quasi-posterior distributions.
Kato, Kengo
core   +1 more source

Review of Mendelian Randomization Studies on Endometrial Cancer

Frontiers in Endocrinology, 2022
Endometrial cancer (EC) is a common gynecological cancer. In some parts of the world, the incidence and mortality of EC are on the rise. Understanding the risk factors of EC is necessary to prevent the occurrence of this disease.
Jian-Zeng Guo, Jian-Zeng Guo, Qi-Jun Wu, Qi-Jun Wu, Qi-Jun Wu, Fang-Hua Liu, Fang-Hua Liu, Chang Gao, Chang Gao, Ting-Ting Gong, Gang Li   +10 more
doaj   +1 more source

On The Panel Unit Root Tests Using Nonlinear Instrumental Variables [PDF]

, 2003
This paper re-examines the panel unit root tests proposed by Chang (2002). She establishes asymptotic independence of the t-statistics when integrable functions of lagged dependent variable are used as instruments even if the original series are cross ...
Im, Kyung So, Pesaran, M. Hashem
core   +1 more source

The Nonexistence of Instrumental Variables [PDF]

The method of instrumental variables (IV) and the generalized method of moments (GMM) has become a central technique in health economics as a method to help to disentangle the complex question of causality.
George S. Tavlas, P. A. V. B. Swamy, Stephen Hall   +2 more
core   +3 more sources