Recent research has suggested that globalization may have transformed the U.S. Phillips curve by making inflation a function of global, rather than domestic, economic activity. This paper tests this view by estimating a semi-structural model for the U.S., which incorporates a role of global output on the domestic demand and supply relations and on the formation of expectations. Expectations are...

This paper integrates the modern theory of unemployment with a limited participation model of money and asks whether such a framework can produce correlations like those associated with the Phillips curve as well as realistic labor market dynamics. The model incorporates both monetary and real shocks. The response of the economy to monetary policy shocks is consistent with recent evidence about...

Discussions on a form of a frequency spectrum of wind-driven sea waves just above the spectral maximum continue during the last three decades. In 1958 Phillips made a conjecture that wave breaking is the main mechanism responsible for the spectrum formation. That leads to the spectrum decay ∼ ω−5, where ω is the frequency of the waves. There is a contradiction between the numerous experimental ...

A mathematical model has been simulated to describe natural in situ bioremediation of contaminated soil. The model equations consist of a system of three non-linear partial differential equations. Sensitivity analysis conducted by numerically solving them, has demonstrated the effect of initial contaminant concentration on the time and mechanism of remediation. The result of simulation indicate...

This paper describes the design and implementation of near-minimum-time control laws for the Advance Space Structures Technology Research Experiments test article located at the Phillips Laboratory, Edwards Air Force Base. The test article is equipped with compressed air thrusters that can be throttled. The mathematical model of the rotational motion is obtained by using experimental data and i...

Analysts typically use a variety of techniques to forecast inflation. These include both ‘bottom-up’ approaches, for near-term forecasting, as well as econometric methods (such as mark-up models of inflation, which have been found to perform quite well for Australia – see de Brouwer and Ericsson (1998)). One of the econometric approaches to inflation forecasting which is sometimes considered is...

in the present study, saffron was dried using a heat pump-assisted hybrid photovoltaic-thermal solar dryer. the effect of different drying air temperatures at three levels (40, 50, and 60oc) and two different modes of the dryer (with and without heat pump system) were investigated on drying behaviour of saffron. after collecting the pertinent data, eleven drying models were used to describe dry...