Although long-term care costs represent a substantial financial risk for retired households, few purchase insurance. Previous research shows that it would not be optimal for most single individuals to purchase coverage, due to crowd-out by the means-tested partial insurance provided by Medicaid....

The accumulation of hazardous arsenic-alkali slag (AAS) poses a great threat to the environment, and the difficulty of AAS disposal lies in the selective separation of arsenic and alkali in the leaching solution. According to the precipitation thermodynamic analysis of the Mg 2+ -NH 4 + -CO 3 2-...

Nitrogen (N) addition typically increases nitrous oxide (N2O) emissions, but the magnitude of this effect depends on land use type and intensity. Grazing has an important influence on grassland N dynamics, but it is not clear to what extent grazing may interact with N addition in affecting...

Regional carbon emission efficiency has differentiated characteristics under different economic development stages and patterns, and it is significant to identify such characteristics and formulate corresponding policies for high-quality regional development. Based on input-output data related...

This paper studies customers' entry behavior and regulation strategy formulated accordingly in a multi-server Markovian queue with synchronous hybrid vacations. In case the system becomes empty, partial servers take incomplete vacations whereas the other servers take complete vacations. Unless...

This paper presents PyPSA-GB, a dataset and model of Great Britain’s (GB) power system encompassing historical years and the future energy scenarios developed by National Grid. It is the first fully open-source model implementation of the future GB power system with high spatial and temporal...

Statistical methods in integrative genomics aim to answer important biology questions by jointly analyzing multiple types of genomic data (vertical integration) or aggregating the same type of data across multiple studies (horizontal integration). In this article, we introduce different types of...

Due to the sheer number of available choices, online retailers frequently use tiered assortment to present their products. In this case, groups of products are arranged across multiple pages or sections, and a customer clicks on "next'' or "load more'' to access them sequentially. Despite the...

We introduce an intraday measure of trade-time clustering which estimates periodic grouping of trades, integrating volume and trade duration. This measure consistently detects informed trading superior to volume and duration. We find that in stable markets, both lagged information flow and...