What should researchers do when their baseline model is falsified? We recommend reporting the set of parameters that are consistent with minimally nonfalsified models. call this falsification adaptive (FAS). This generalizes standard estimand to account for possible falsification. Importantly, it does not require researcher select or calibrate sensitivity parameters. In classical linear IV mult...

We develop non-parametric instrumental variable estimation and inferential theory for econometric models with possibly endogenous regressors whose coefficients can vary over time either deterministically or stochastically, the time-varying uniform versions of standard Hausman exogeneity test. After deriving asymptotic properties proposed procedures, we assess their finite sample performance by ...

This paper studies the identification and estimation of optimal linear approximation a structural regression function. The parameter in is called Optimal Linear Instrumental Variables Approximation (OLIVA). shows that necessary condition for standard inference on OLIVA also sufficient existence an IV estimand model. instrument unknown may not be identified. A Two-Step (TSIV) estimator based Tik...

Organisms from all domains of life invest a substantial amount energy for the introduction RNA modifications into nearly transcripts studied to date. Instrumental analysis can focus on modified residues and reveal function these epitranscriptomic marks. Here, we will review recent advances breakthroughs achieved by NMR spectroscopy, sequencing, mass spectrometry epitranscriptome.

The empirical law of effect is criticized as an incomplete step in the development of empirical laws of instrumental performance. An alternate approach to the prediction of performance is developed which follows Premack in relating instrumental performance to empirical measures of operant behavior. However, it is concluded that instrumental performance is not determined by a probability differe...

The aim of this study was to characterize dependent elderly people and their main family caregivers and the association between functional capacity of the elderly and the burden of caregivers. This cross-sectional study was conducted with 112 elderly people and caregivers connected to a primary care service in Porto Alegre, Brazil. The applied instruments related to care and socioeconomic varia...

Validity of an Instrumental Variable” Fan Yang, José R. Zubizarreta, Dylan S. Small, Scott Lorch, Paul R. Rosenbaum1 University of Chicago, Columbia University and University of Pennsylvania Abstract: This on-line supplement to “Dissonant Conclusions When Testing the Validity of an Instrumental Variable”documents some rather small technical innovations that are used in the manuscript. These inn...