Many studies have confirmed that the separation of parents and children has a negative impact on children's growth. Although compulsory-education barriers for migrants' children have gradually disappeared in China, many families who migrate to cities have to leave their school-age children in...

Advertising is a major revenue source for e-commerce platforms and an important online marketing tool for e-commerce sellers. In this paper, we explore dynamic ad allocation with limited slots upon each customer arrival for e-commerce platforms when customers follow a choice model when clicking...

This work studies the long-range dependence of retail trading in the stock market. Strong evidence is found for the presence of long memory in retail trading activity, and this finding is robust to the choice of retail trade identification criteria and statistical estimators for the memory...

In this paper, we study the finite-time ruin probability in the risk model driven by a L´evy subordinator, by incorporating the popular Fourier-cosine method. Our interest is to propose a general approximation for any specified precision provided that the characteristic function of the L´evy...

Oxide dispersion strengthened (ODS) Ni-based superalloys with high Al/Ti content (Ni-20Cr- x Al- y Ti-0.6Y 2 O 3 -0.6Zr, x / y =~1, 1.8 and 16, named SA, SAT and ST alloy, respectively) and reference ODS alloy with low Al and Ti contents were produced by mechanical alloying and spark plasma...

Solar-driven photoelectrochemical (PEC) water splitting for hydrogen generation is regarded as a sustainable strategy to relieve fossil resource issue. However, its PEC conversion efficiency still suffers from the low light absorption and high electron-hole recombination. Herein, we report 1D/2D...

This paper investigates the strategic interaction of information acquisition, information-based dynamic trading, and noise trading patterns, as well as its significant implications on market equilibrium outcomes. We consider a market where the strategic trader can dynamically acquire costly...

Although multiple-purchase behavior is typical in retail practice, the choice model to portray such behavior is rare in existing research. This paper presents a new multiple-purchase (MP) choice model based on the multinomial logit (MNL) choice model, which allows customers to purchase more than...