The present investigation deals with the bulk arrival M/G/1 retrial queue with impatient customers and modified vacation policy. The incoming customers join the virtual pool of customers called orbit if they find the server being busy, on vacation or in broken down state otherwise the service of the customer at the head of the batch is started by the server. The service is provided in k</em...

This paper investigates a discrete-time impatient customer queue with Bernoulli-schedule vacation interruption. The  vacation times and the service times during regular busy period and during working vacation period are assumed to follow geometric distribution. We obtain the steady-state probabilities at arbitrary and outside observer's observation epochs using recursive technique. Cost analysi...

The ever increasing demand of the subscribers has put pressure on the capacity of wireless networks around the world. To utilize the scare resources, in the present paper we propose an optimal allocation scheme for an integrated wireless/cellular model with handoff priority and handoff guarantee services. The suggested algorithm optimally allocates the resources in each cell and dynamically adj...

The UK Government reneging on its long-standing commitment to spending 0·7% of gross national income international aid is being lamented as a stain the country's proud record aid. Originally based 1970 UN General Assembly resolution,1UN AssemblyInternational development strategy for 2nd United Nations Development Decade.https://digitallibrary.un.org/record/201726?ln=enDate: Oct 24, 1970Date acc...

We are pleased to confirm that any doubt our article (McCullough and Vinod, 2003; hereafter “MV03”) may have cast on Ron Shachar and Barry Nalebuff (1999; hereafter “SN99”) must be removed. We are especially pleased because we thought it quite unfair that other researchers were able to exempt themselves from such detailed scrutiny. It appears that such researchers no longer will have the luxury...

Theprinciple of data sharingdates to the dawnof scientificdiscovery—it ishowresearchers fromdifferentdisciplines and countries form collaborations, learn from others, identify new scientific opportunities, and work to turnnewlydiscovered information intosharedknowledgeandpracticaladvances.Whenresearch involveshumanvolunteerswhoagree toparticipate in clinical trials to test new drugs, devices, o...

It has been argued that hostile takeovers redistribute wealth from workers to shareholders by enabling the acquiring firm to revoke implicit contracts. This paper uses micro-data from personnel records to examine the consequences of the Union Bank of Australia’s 1892 takeover of the Bank of South Australia (BSA). The evidence confirms that older workers at the BSA were harmed. I show that they ...

This paper presents evidence of a large, persistent decline in establishment-level workplace injury rates after private equity (PE) buyouts of publicly-traded firms but not already-private firms. Cross-sectional evidence further links the public-firm postbuyout decline to alleviation of market pressure to focus on short-term performance. Employment drops more in low-injury risk establishments, ...

We assert that decision rights in organizations are not contractible: the boss can always overturn a subordinate’s decision, so formal authority resides only at the top. Although decision rights cannot be formally delegated, they might be informally delegated through self-enforcing relational contracts. We examine the feasibility of informal authority in two informational environments. We show ...

Corruption is costly for developing nations’ economies, but scholars and policy makers do not fully understand who bears the cost of corruption. We conduct a field experiment in Malawi to determine the impacts of political connections, socioeconomic status, and shared ethnicity on the degree of corruption a citizen encounters across two contexts – police roadblocks and electricity service offic...