A class of Markov processes, called the Level Dependent Band-QBD Processes, is defined and introduced. An exact and efficient solution of these processes, using the spectral expansion method, is developed. The utility of these processes is illustrated through solving a non-trivial example, which is, the performance modelling of a multiserver system used for Web server software architecture.

This paper examines how child maltreatment is affected by the economic circumstances of parents. “Child maltreatment” encompasses a wide range of behaviors that adversely affect children. It includes neglect, physical abuse, sexual abuse, and other forms of abuse or neglect. Using state-level panel data on the numbers of reports and substantiated cases of maltreatment, we examine whether socioe...

We test whether income dynamics over 30 years in rural Indian villages suggest the presence of a poverty trap. A weighted dynamic panel estimate using rainfall as an instrument for lagged income addresses measurement error, attrition bias, and the inherent endogeneity of lagged income while allowing the steady state of income to vary across individuals. Estimates of the model provide robust evi...

An influence of a high-voltage (3-17 kV) 20 ns pulse on a weakly-ionized low-pressure (0.1-10 Pa) capacitively coupled radiofrequency (RF) argon plasma is studied experimentally. The plasma evolution after pulse exhibits two characteristic regimes: a bright flash, occurring within 100 ns after the pulse (when the discharge emission increases by 2-3 orders of magnitude over the steady-state leve...

the modulation response, relative intensity noise and frequency noise characteristics of qd lasers are investigated theoretically, in presence of an additional optical pumping. it is revealed that the modulation response of qd laser enhances under additional optical beam. by small signal analysis of the carriers' and photons' rates, it is proposed that by injecting excess carriers to ...

a r t i c l e i n f o Do congestion externalities offer a reason to depart from complete price stability as the only goal of monetary policy in a New Keynesian model featuring search frictions, and under what conditions is the welfare cost of labor-market distortions sizable? This paper tries to answer these questions by deriving a linear quadratic framework for optimal monetary policy analysis...

The ability of the servers to deliver services to the clients according to pre-defined agreements is becoming an important requirement. These pre-defined agreements are sometimes referred to as service level agreements (SLA). In most practical cases, these agreements are based on the response times observed by the customer. This service level ‘agreeability’ is not captured in the definitions of...