درخت حوزه‌های تخصصی

In the first nine months of 2018, the triple increase of dollar price made the stock market an attractive place for speculation, especially for non-professional investors. Hence, this study was aimed to investigate the profitability of speculation in the foreign exchange market (dollar) and to compare it with investment in three indices of sugar, oil products, and basic metals. First, the conditional Sharpe ratio was calculated separately for these four assets. Then, six investment portfolios were developed for these four assets. The results showed although dollar speculation with mean daily return of 0.6% had the highest return among the ten investment assets, dollar speculation was ranked last, or tenth (0.096) in terms of performance and profitability by considering the standard deviation or daily conditional risk using conditional Sharpe ratio. Moreover, the results indicated that from among the six portfolios with equal weight, three investment portfolios consisting of merely Tehran Stock Exchange indices had a better performance than three investment portfolios comprising dollar speculation and each stock exchange index. It was also found that the risk of lack of capital diversification by investors was higher than that of accepting a higher-level risk.

Nowadays, when excessive attention to the material issues and the homogeneity of societies does not meet the rebellious and human spirit, and amid successive runs, it seems that man is looking for a destination other than bread and shelter, a higher excuse to survive. The need to discover the truth and meaning of existence compels man to glorify his immaterial and spiritual dimension by seeking the path of cognition. Understanding spirituality and its history is a significant concept worth exploring from a social and personal perspective. This research was done using the qualitative grounded theory method to present the idea of spirituality in tourism, relying on Eastern philosophy and international codes of ethics, and performing different techniques such as studying various texts and using the expert’s opinion. The results of this research can be interpreted in such a way that the individual  dimension includes: internal and mystical connection, human interaction in the universe and superior power, guiding principles in understanding truth and meaning of life, and social dimension including each person's cognitive system and its impact on man's attitude and perceptions of his life and behaviors, determining the tolerable capacity of the environment and environmental assessment, protection of cultural identity and indigenous subcultures. Recognition and perception of spirituality in tourism express spirituality, which is done by emphasizing self-creation and action related to the Creator of the world.