A decomposition of nominal value added growth over multiple sectors of an economy into explanatory factors is presented. The explanatory factors over a single sector are changes in the efficiency of the sector, growth of primary inputs, changes in sectoral output and input prices, technical progress and returns to scale. In order to implement the decomposition for a sector, an estimate of the s...

Do extreme values of daily-life gait characteristics provide more information about fall risk than median values? Abstract Background. Gait characteristics estimated from daily-life trunk accelerations reflect gait quality and are associated with fall incidence in older adults. While associations are based on median values of these gait characteristics, their extreme values may reflect either h...

OVERVIEW In a market setting, a business undertakes many operations to provide product (good or service) to its customers. Each of these operations receives an input (raw material, labour, throughput) and transforms it into an output. An operation is effective if it creates an output having more value than its input. The value added by each operation justifies its raison être in the business. T...

This paper develops a duopoly model in which two free video platforms compete for groups of users, i.e., viewers and advertisers. We investigate platforms’ value-added service (VAS) investment strategies ad pricing under situation where only one platform invests viewers. The results reveal that: 1) When marginal cost increases, the platform’s VAS level price first remain constant then decrease;...

The development of value added services is currently still very time and cost consuming. The TeamCom project offers a solution to cope with this problem. It offers a simple, fast, and cost efficient way to design the service graphically in a BPEL developer tool. A code generator analyses the BPEL code and generates the value added service. This service can be deployed on a JSLEE application ser...