Cross-bidding is a new strategy used in online auctions. The bidder simultaneously monitors several identical auctions, taking advantage of their price differential. We examined the determinants and outcomes of cross-bidding behavior and the contingent factors that shape it. Using empirical data, we demonstrated that cross-bidders can realize significant price discounts compared to non-cross-bi...

This paper examines the spaces, politics, and cultural economies of electronic dance music (EDM). I use geographical literature on EDM to argue that its hedonistic spaces have been forged via cultural economic practices which I conceptualize as constitutive of a process of ‘accumulation by cooperation’. In numerous contexts, the people of EDM – the DJs, producers, MCs, artists, promoters, and r...

Online platforms are prone to abuse and manipulation from strategic parties. For example, social media and review websites suffer from the presence of opinion spam and fake reviews. Applying the economic concept of rational expectation equilibrium (REE), we explore the impact of manipulation on consumer welfare in a Twitter-like environment. We argue that the REE outcome can be decomposed into ...

This study examines investor reactions to the repeated public disclosure of environmental information about firms in the chemical industry and the effectiveness of this information as a decentralized mechanism for deterring their pollution. It shows that these firms incur statistically significant negative stock market returns during the one day period following the disclosure of the Toxics Rel...

the effect of underground cavities in site seismic response was studied over the subway tunnels that are under construction in the city of karaj, using ambient noise measurements as well as numerical modeling. the idea for this research comes from the observation of differences in experimental site transfer function, calculated on more than 100 locations of the city, for the areas near the unde...

Quantitative cineangiocardiographic technics have been utilized to determine left ventricular (LV) and left atrial (LA) volumes and LV muscle mass in 58 patients with isolated ventricular septal defect, 14 of whom were infants less than 2 years old, and in 25 patients with isolated patent ductus arteriosus, 13 of whom were infants. Patients were divided according to the degree of left-to-right ...

Quantitative cineangiocardiographic technics have been utilized to determine left ventricular (LV) and left atrial (LA) volumes and LV muscle mass in 58 patients with isolated ventricular septal defect, 14 of whom were infants less than 2 years old, and in 25 patients with isolated patent ductus arteriosus, 13 of whom were infants. Patients were divided according to the degree of left-to-right ...

introduction surgical site infection is a common side effect of surgeries that causes an increase in morbidity, mortality , patient length of stay in the hospital and hospital expenses. quality management as an organizational strategy helps improve working processes and enhance hospital productivity. method this study aimed to examine the impact of applying a quality management technique on red...