One possible explanation for this is that it is difficult to find instruments that are perfectly correlated with endogeneous
variables in the OLS regression.
If coefficients of residuals are significantly different from zero in a t-test, then the correspondent variables will be endogeneous
2004-030A: Siddhartha Chib and Michael Dueker, "Non-Markovian Regime Switching with Endogeneous
States and Time-Varying State Strengths.
The distinguishing empirical feature of the analysis is its allowance for the endogeneous
timing of bond issuance.
Predicted MARGIN Using Entire Sample for Prediction (n = 5471) at Mean Values of Explanatory Variables Predicted Average MARGIN with Only Model One Insurer Exogeneous $1420 switching (OLS) (a) (95% CI = $1378, $1462) (b) Endogeneous
$1237 switching (95% CI = $1195, $1279) Predicted Average Difference in MARGIN MARGIN with Associated with Having Model More Than One Insurer Only One Insurer Exogeneous $1509 $89 switching (OLS) (a) (95% CI = $1468, $1550) Endogeneous
$1048 +$188 switching (95% CI = $1006, $1090) (a) OLS = ordinary least squares.
Brynjolfsson and Hitt (1996) use instrumental variable methods to filter out the endogeneous
variation and error in ICT capital in a cross-section Cobb-Douglas production function including ICT labour and capital and non-ICT labour and capital.
As any other strategic resource, networks may evolve over time shaped by exogeneous and endogeneous
forces such as managerial action and/or policy events.
In this experiment, endogeneous
rat NOS 1 gene was an internal control, human NOS 1 without NGF was the control, and human NOS 1 with NGF was the experimental.
biotin was blocked by adding an excess amount of avidin followed by washing and addition of free biotin.
A native translatable mRNA remaining in the rabbit reticulocyte lysate preparation routinely produced an endogeneous
protein in the absence of BMV RNA, as seen in Lane 9.
Mulligan, "The Endogeneous
Determination of Time Preference," Quarterly Journal of Economics, 112:3, August 1997, 729-758.
Designed for high throughput screening of targets related to writers and erasers of the histone code, these new novel Alpha technology-based reagents are the only homogenous cellular assays for endogeneous
histone modification research.