Energy planning can be defined as a roadmap for meeting the energy needs of a nation and
is accomplished by considering multiple factors such as technology, economy, environment …

Consider a study whose design calls for the study subjects to be followed from enrollment
(time t= 0) to time t= T, at which point a primary endpoint of interest Y is to be measured. The …

This article (which is mainly expository) sets up graphical models for causation, having a bit
less than the usual complement of hypothetical counterfactuals. Assuming the invariance of …

Global environmental change often seems to be the most carefully examined issue of our
time. Yet understanding the human sideâ€" human causes of and responses to …

The subject-specific data from a longitudinal study consist of a string of numbers. These
numbers represent a series of empirical measurements. Calculations are performed on …

Consider developing a regression model in a context where substantive theory is weak. To
focus on an extreme case, suppose that in fact there is no relationship between the …

In 1964, I entered the field of psychology because I believed that within it dwelt some of the
most fundamental and challenging problems of the extant sciences. Who could not be …

In 1967, Blau and Duncan proposed a path model for education and stratification. This is
one of the most influential applications of statistical modeling technique to social data. There …

The bootstrap, like the jackknife, is a technique for estimating standard errors. The idea is to
use Monte Carlo simulation based on a nonparametric estimate of the underlying error …

This article describes the difficulties of reducing analysis of energy use to an application of
economic theory. It shows how economic concepts of behavior direct attention selectively to …