Gold price forecast is of great importance. Many models were presented by researchers to forecast gold price. It seems that although different models could forecast gold price under different conditions, the new factors affecting gold price forecast have a significant importance and effect on the increase of forecast accuracy. In this paper, different factors were studied in comparison to the p...

Abstract Increases in minimum air temperatures have facilitated transitions of salt marshes to mangroves along coastlines the southeastern United States. Numerous studies documented mangrove expansion into marshes; however, a present‐day conversion oyster reefs islands has not been documented. Using aerial photographs and high‐resolution satellite imagery, we determined percent cover number pat...

In this lecture we will examine the first commercial application of quantum optical communication: quantum cryptography. We’ll start with a purely classical case, and show that a one-time pad provides totally secure digital communication. The difficulty of creating a shared one-time pad between remote sites will then lead us into quantum cryptography, or, more properly, quantum key distribution...

T his paper investigates the existence of possible spillover effects among four main asset markets namely foreign exchange, stock, gold, and housing markets in Iran from 2002:03 to 2015:06. For this purpose, we have exploited Sigma-Point Kalman Filter (SPKF) to extract the bubble component of assets prices in the aforementioned Markets. Then, in order to analyze the price bubbles spi...

We study the interactions among Internet providers in vehicular networks which offer access to commuters via road side units (RSUs). Namely, we propose a game-theoretical framework tomodel the competition on prices between vehicular Internet providers to capture the largest amount of users, thus selfishlymaximizing the revenues. The equilibria of the aforementioned game are characterized under ...

Abstract This paper extends the findings of Liu, Wang, and Lee (2015. “Strategic Environmental Corporate Social Responsibility in a Differentiated Duopoly Market.” Economics Letters 129: 108–11), along two dimensions. First, we consider case endogenous market structure la Singh Vives (1984. “Price Quantity Competition Duopoly.” The RAND Journal : 546–54). Second, refine ECSR certification stand...

Since summer 2007, mobile phone users in the European Union (EU) are protected by a ceiling on the roaming tariff when calling or receiving a call abroad. We analyze the effects of this price regulative policy, and compare it to alternative implementations of price regulations. The problem is a three-level mathematical program: The EU determines the price regulative policy that maximizes overal...