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What determines optimal R&D investment in a market with indirect network effects? We analyze this question in a hardware-software framework, where software firms strategically invest in quality upgrades. We find that a firm’s optimal investment depends predominantly on (1) the quality level of its software relative to its competitors on the same hardware and on (2) the quality levels of all sof...

t Wilkie's stochastic investment model and its variants have been increasingly applied by actuaries around the world to actuarial modeling and simulation. This paper performs time series outlier analysis on retail price inflation, which is the driving force of Wilkie's composite model. The data come from four developed countries: the United Kingdom, the United States, Canada, and Australia. The...

The main business of an investment company is to hold and manage securities for investment purposes. In today competitive market Pricing and its methodology are complicated motions. It is very important to define a price that can prevail the competition in an open and free market. In order to define the price certain circumstances should be considered. In the academic arena there have been seve...

BACKGROUND Contingent valuation (CV) is used to estimate the willingness to pay (WTP) of consumers for specific attributes to improve the quality of health care they received in three hospitals in Bangladesh. METHODS Random sample of 252 patients were interviewed to measure their willingness to pay for seven specified improvements in the quality of delivered medical care. Partial tobit regres...

[Context and Motivation] Traceability between source code and requirement artifacts is important for various tasks during software development. However, it is a lot of effort to create and maintain traceability links manually. Therefore, semi-automatic traceability support is developed. [Question/ problem] Traceability research has a strong focus on trace link recovery using information retriev...

In this paper, I examine a new approach for measuring earnings quality, defined as the closeness of reported earnings to “permanent earnings,” based on firm decisions with regard to capital and labor investments. Specifically, I measure earnings quality as the contemporaneous association between changes in the levels of capital and labor investment and the change in reported earnings. This appr...

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Nowadays, there is a plethora of technology in hospitals and, in particular, in intensive care units. The clinical data produced everyday can be integrated in a decision support system in real-time to improve quality of care of the critically ill patients. However, there are many sensitive aspects that must be taken into account, mainly the data quality and the integration of heterogeneous data...