Australian interest rate volatility is modelled to examine the effect of quarterly inflation rate announcements on interest rate volatility. The data used in this empirical analysis consists of the daily closing rates for 90 day Australian treasury bills from 3 July 1985 to 31 December 1993....

The applicability is explored of using ARCH/GARCH models to investigate Australian financial futures data. The extent to which the parameters of the models change over time is examined through analysing the data contract by contract. The results do vary over time and simple models such as the...

The authors estimated air quality impacts due to residential firewood use for the year 2000 for 16 U.S. metropolitan areas. The wood usage estimates were based on price elasticities in relation to other space heating fuels, a range of future firewood prices, and an algorithm for the spatial...

A hydrogen economy, the long-term goal of many nations, can potentially confer energy security, along with environmental and economic benefits. However, the transition from a conventional petroleum-based energy system to a hydrogen economy involves many uncertainties, such as the development of...

In Afghanistan, where 80% of the population is rural, irrigated agriculture using surface water is an extremely important economic activity. With the advent of the New Water Law, highly localized and centuries-old agricultural water management traditions are giving way to more modern centralized...