This paper studies the performance impact of making delay announcements to arriving customers who must wait before starting service in a many-server queue with customer abandonment. The queue is assumed to be invisible to waiting customers, as in most customer contact centers, when contact is made by telephone, email or instant messaging. Customers who must wait are told upon arrival either the...

Purpose: This study aspires to explore how the United States stock market reacts to ISO 14001 certification announcements. Design/methodology/approach: The manuscript employs an event-study methodology on a sample of 140 announcements and matching control firms to study the impact of ISO 14001 certification announcements. Findings: Our results suggest that ISO 14001 certification announcements ...

the study attempts to find out the impact of buyback announcement on share price. paired sample t-test is employed to compare share price before and after the buyback announcement. the analysis of variance is also used to find out whether there is any significant difference among industries in the price change due to buyback announcement. the study is carried out from 1st january 2005 to 31st d...

The conference will provide opportunities for those involved in the organization, promotion, and study of scholarly communication to share and discuss innovative work in scholarly publishing, with a focus on the contribution that open-source publishing technologies (such as, but not restricted to, PKP's OJS, OCS, OMP, Lemon8-XML, and OA Harvester) can make to improving access to research and sc...

Arbitrary public announcement logic (APAL) reasons about how the knowledge of a set of agents changes after true public announcements and after arbitrary announcements of true epistemic formulas. We consider a variant of arbitrary public announcement logic called positive arbitrary public announcement logic (APAL), which restricts arbitrary public announcements to announcement of positive formu...

In the early euphoria associated with the launching of new internet-based businesses, most established traditional businesses felt compelled to respond by launching web-based retail outlets of their own. Stock market response to announcements of transactional web-site launches by business-to-consumer retail outlets are examined. Results provide support for theoretical predictions of the effect ...

Popularly considered a great equalizer, death and the rituals around it nevertheless accentuate social distinctions. The present study focuses on a sample (N = 2554) of death announcements in a major Turkish daily newspaper (Hürriyet) from 1970 to 2006. Out of the liminal position of Turkish death announcements between obituaries and death notices emerges a large decentralized collection of pri...

Why do announcements of public information set o¤ a frenzy of trading? Usually, public information brings beliefs closer to each other. With less disagreement, there should be less reason to trade. I highlight two novel properties of certain Gaussian information structures and show that they explain hectic and informative trading around announcements. First, announcements can lead to contrarian...

We investigate the impact of scheduled macroeconomic news announcements on U.S. Treasury market’s efficiency. Using intraday data and controlling for microstructure noise, we employ a robust method to construct market inefficiency measures. find that is less efficient in five-minute interval before arrival. Our findings are different sample periods, announcements, investor heterogeneity provide...