In this paper, we consider a deterministic multi-attribute vehicle routing problem derived from a real-life milk collection system. This problem is characterized by the presence of a heterogeneous fleet of vehicles, multiple depots, and several resource constraints. A branch-and-price methodology is proposed to tackle the problem. In this methodology, different branching strategies, adapted to ...

as the world trade is growing, exchange rate acts as a bridge between different economies and its volatility can affect price level, output, exports and imports. the purpose of this study is to investigate the effects of real exchange rate volatility on the export demand for the two products of apple and potato in the nine developing counteries of producing and exporting the two products during...

t he relationship between the price of oil and the level of economic activity is a fundamental empirical issue in macroeconomics. in this research, by using a multivariate garch-in-mean var, we try to investigate direct effects of uncertainty of oil price on macroeconomics of iran by using annually data from 1965 to 2013.results show that uncertainty about oil prices had a negative and signific...

in recent years, information has become a major consideration in making financial decisions. in this paper there methods of project evaluation under inflationary conditions are descried and compared. the three methods are: i• gross profit per unit approach 2• current price each now 3• fixed price (real) cach flow in section ii of the paper different conditions under which all three approaches y...

In this paper, we analyzed the real estate transaction data, and built prediction models for the real estate price using data mining algorithms, and validate the models. The datasets we used were publicly available from King County in the State of Washington the datasets were for the year 2012 and 2013. Each has 22,812 and 27,333 transactions, respectively. We built two models using two algorit...

Applying the simultaneous-equation model, this study finds that the output elasticity with respect to the real oil price is estimated to be -0.042, indicating that if the real oil price rises 10%, real GDP would decrease by 0.42%. In addition, real output in Korea is positively associated with the money supply, real deficit spending, and the real stock price and negatively influenced by real de...

This article investigates the relationship between the exchange rate and non-oil trade balance in Iran between 1981 and 2014. A structural vector auto-regression model is built. The results indicated that the increasing effect of the real effective exchange rate worsens the non-oil trade balance in the short term. In contrast, the increasing effect of the real effective exchange rate improves t...

This paper presents a method that uses a simulation-based real options analysis to determine the value of waiting after obtaining a remaining useful life (RUL) indication from prognostics and health management (PHM) structures within a wind turbine. This methodology potentially allows the threshold for maintenance to be optimized in real-time based on the state of health of the turbine, the ant...