Abstract: An inset feed microstrip patch antenna is designed to increase the bandwidth and return loss. RT-Duriod with dielectric constant of 4.4 is used as a substrate for the proposed antenna. RT-Duriod is a having a lowest dielectric constant and can reduce the dielectric losses associated with microstrip patch antenna. This antenna is useful for 2.4 GHz frequency, which comes under ISM (Ind...

In a matching and intra…rm bargaining economy with constant return to scale production and matching technologies, large …rms hire and train workers e¢ciently. The e¢ciency of the competitive economy relies on the ability of large …rm to take into account the consequences of training on the wages bargained inside the …rm. This intra…rm bargaining process solves the hold-up problem that is associ...

The study describes the development of health production functions and their application in the evaluation of the health impacts of investments in safe water and sanitation. For this purpose, data on the morbidity of waterborne diseases and diarrhoea were collected from medical records in the province of Central Java, Indonesia. A reciprocal production function was found to fit the data best. T...

Within uncertain technological progress, a firm has to decide when to update its technology and select a new one among a non-decreasing range over time. Under constant return to scale, the best existing technology is implemented. Replacement is triggered not only when the firm operated technology is sufficiently obsolete but also the wedge between the latest and the state of the arts grades is ...

This paper examines the convergence process of industrial productivity between Chinese regions. Both σ and β convergences are investigated using a panel data set of 30 provinces and autonomous regions over the period 1985-1999. Unconditional σ and β convergence methods fail to detect productivity convergence over the whole sample period, although they suggest convergence during a sub-period 198...

The Solow-Swan model is shortly reviewed from a mathematical point of view. By considering non-constant returns to scale, we obtain general solution strategy. We then compute the exact for Cobb-Douglas production function, both classical and von Bertalanffy model. Numerical simulations are provided.