Showing 1 - 10 of 49
Throughout the 1970s and 1980s, U.S. institutions of higher education began to address long-standing patterns of exclusion. Initial efforts to improve the access of black students to engineering education focused on six historically black engineering colleges, and evolved into a truly nationwide...
Persistent link: https://www.econbiz.de/10012454979
Does academic economic research produce material of scientific value, or are academic economists writing only for clients and peers? Is economics scholarship uniquely insular? We address these questions by quantifying interactions between economics and other disciplines. Changes in the impact of...
Persistent link: https://www.econbiz.de/10012454984
The Value of Statistical Life (VSL) is arguably the most important number in benefit-cost analyses of environmental, health, and transportation policies. However, agencies have used a wide range of VSL values. One reason may be the embarrassment of riches when it comes to VSL studies. While...
Persistent link: https://www.econbiz.de/10012616632
We introduce the concept of a triad census of a digraph arid show how it can be used to enumerate various types of subgraph configurations. We give the basic probabilities needed for computing means and variances for a triad census under the U-MAN distribution for digraphs. These concepts are...
Persistent link: https://www.econbiz.de/10012479082
This paper combines information from two sources of U.S. private payroll employment to increase the accuracy of real-time measurement of the labor market. The sources are the Current Employment Statistics (CES) from BLS and microdata from the payroll processing firm ADP. We briefly describe the...
Persistent link: https://www.econbiz.de/10012479981
FDI plays a central role in managing global production networks, but FDI statistics also reflect other factors, including tax avoidance, that make it difficult to differentiate between FDI for "long-term" investments that serves as a source of growth and FDI that is purely financial and has...
Persistent link: https://www.econbiz.de/10012480682
As the COVID-19 pandemic progresses, researchers are reporting findings of randomized trials comparing standard care with care augmented by experimental drugs. The trials have small sample sizes, so estimates of treatment effects are imprecise. Seeing imprecision, clinicians reading research...
Persistent link: https://www.econbiz.de/10012481487
It is widely recognized that the economics of distant-future events, like climate change, is critically dependent upon the choice of a discount rate. Unfortunately, it is unclear how to discount distant-future events when the future discount rate itself is unknown. In previous work, an...
Persistent link: https://www.econbiz.de/10012463061
This paper introduces an empirical strategy to estimate dynamic treatment effects in randomized trials that provide treatment in multiple stages and in which various noncompliance problems arise such as attrition and selective transitions between treatment and control groups. Our approach is...
Persistent link: https://www.econbiz.de/10012463449
Matching estimators (Rubin, 1973a, 1977; Rosenbaum, 2002) are widely used in statistical data analysis. However, the large sample distribution of matching estimators has been derived only for particular cases (Abadie and Imbens, 2006). This article establishes a martingale representation for...
Persistent link: https://www.econbiz.de/10012463891