The paper considers the forecasting of the Warsaw Stock Exchange price index WIG20 by applying a state space wavelet network model of the index price. The approach can be applied to the development of tools for predicting changes of other economic indicators, especially stock exchange indices. The paper presents a general state space wavelet network model and the underlying principles. The mode...

One of the goals of the government is to increase the competitiveness of domestic firms to export goods and services. Moreover, the role of exports in many economic sectors has been emphasized. There are two essential requirements for developing non-oil exports: first, the presence of firms in export markets and increasing their competitiveness; second, the survival of them in international mar...

The rent of shelter accounts for approximately a third of the Consumer Price Index (CPI). Using a new housing rent index (RRI) developed by Ambrose, Coulson, and Yoshida (2014), we modify the CPI and compute the Taylor rule for the period from 2000 to 2010. With this timely rent index, Taylor rule becomes more consistent with the Federal funds rate than the conventional calculations. However, t...

in this study, the situation of iran, u.s and turkey's pistachio export is investigated. to this purpose, revealed comparative advantage (rca) index is calculated based on agricultural and total economy export, separately, then forecasted by using auto- regressive integrated moving average (arima) approached, for 2008-2013. the results show that considering both commodity baskets, turkey and ir...

in which the summation is taken over all y1 goods and where wi is the budget share of commodity i, qi is the quantity of good i, pi is the unit price of good i, x is total expenditure, and P is the Divisia price index, implicitly defined as d In P = cj wj.d In pi. The parameter pi is the (constant) marginal budget share of good i; negativity of the substitution effect imposes 7rii < 0. The left...

Perishability, a largely unconsidered characteristic of consumer goods, is shown to play an important role in planned multistore shopping behavior. We present a model of consumers as cost minimizing inventory managers, who choose between two stores di!erentiated on location and price, and who purchase perishable and nonperishable goods. We show that the interaction between perishability of good...

We use highly disaggregated data on trade in capital goods to study differences in the price of capital across countries. This strategy is motivated by the fact that most countries import the bulk of machinery equipment from a small number of industrialized countries. We find the price of imported capital goods to be negatively and significantly correlated with the income of the importing count...

We develop an analytical framework to investigate the competitive implications of secondary electronic marketplaces which promote concurrent selling of new and used information goods. In secondary markets where suppliers cannot directly use second-hand goods for practicing intertemporal price discrimination, the threat of cannibalization of new goods by used goods become significant. We examine...

the augmented gravity model was employed to determine iran&apos;s trading model and agricultural export directions in the case of cross section analysis in 2005 for 64 countries which are considered as iran&apos;s main export market. besides, another explanatory variable named trade conformity index (tci) was added to the model. this index was employed to identify iran&apos;s trading model. als...