This study explores the effect of internal control weakness on investment efficiency of companies listed in Tehran Stock Exchange. The statistical population included all companies listed in Tehran Stock Exchange during the time period 2012-2015. Purposive sampling was the sampling method. Given the theoretical principles and the research literature, two hypotheses were proposed which were test...

this paper provides a fuzzy based decision support system (dss) for risk analysis in e-tourism ( electronic tourism ) investment. in general term, e-tourism is the use of information and communication technology (ict) in tourism which may allow operating tourism in least variable cost, least time and increased work efficiency. it is worth noting that there are many factors that affect the deve...

The current study focuses on the problem of determining investment attrаctiveness of countries by means of monitoring regional stock markets. The method of using the permutation entropy as a model of investment attractiveness estimation is suggested. We have calculated the permutation entropy for the time series of stock markets of countries for the period from 2005 to 2018. The countries with ...

sustained is by omitting any reference to the sensation novels thronged with palpably nervous middle-class bodies which gave rise during the 1860s to a fury of indignation. "The reader's nerves are affected like the hero's", Margaret Oliphant stridently complained in a review of the most famous of them all, Wilkie Collins's The woman in white (1860). Such omissions make Nerves and narratives, a...

e are pleased to have an cognizing the Silver Anni romarketing (JMM) and to amental role within schol ments here are based on an ast nine years, in which we nature and extent of mar ed a great deal while doin lesson involves the appr romarketing perspective fo g scholarship. s macromarketers well know by all sectors of marketing a we explore eight distinct issu n in Table 1, these eight po utur...

This paper considers a utility maximization and optimal asset allocation problem in the presence of a stochastic endowment that cannot be fully hedged through trading in the financial market. We rely on the dynamic programming approach to solve the optimization problem. The properties of the value function, particularly the homogeneity, are used to reduce the HJB equation by one dimension. Furt...

In this paper we consider an agent on a financial market who can trade with an uncertain time horizon by investing in risky stocks and a risk-free bond. He aims at maximizing the utility he draws from his final wealth measured by some utility function. We obtain a sufficient and necessary condition for the optimality, which gives an explicit expression for the optimal strategies as solutions of...