Thursday, August 15, 2019

Cryptocurrency(1)

           In recent years, cryptocurrencies have become quite popular in the world. However, this issue of cryptocurrency reliability is highly controversial.
            In addition cryptocurrency is used in many illegal trade on the deep web. These cryptocurrencies are used for illegal slave trade and drug.
            In addition to all these problems, one of the most important problems is why the cryptocurrency rises and falls. Many scholars have different opinions on this issue. However, the common view is that the ups and downs in bitcoin or cryptocurrencies do not depend on any physical factors.


            However, I think that this idea is not correct. I think that real economic activities play an important role in the rise and fall of bitcoin and other cryptocurrencies. I prepared a data set to test my idea. This data set includes data such as ripple and bitcoin. In addition, this data set includes data such as oil, dollar and gold.

           This data set covers June 2014 to August 2019. The values in this dataset were first translated into Turkish Lira and then normalized in R program. My results were different from the literature.

           Firstly, correlation analysis was performed. According to the results of the correlation analysis, there is a strong correlation between Bitcoin and USD and gold. In addition, there is also a correlation between oil and bitcoin. But this correlation is not strong like USD and gold.

           In addition to correlation analysis, linear regression analysis was performed. The results of linear regression analysis confirmed the results of correlation analysis. In linear regression analysis, USD was chosen as the dependent variable. Bitcoin was chosen as an independent variable.

           Linear regression analysis also shows that there is a significant relationship between Bitcoin and USD.


Wednesday, August 7, 2019

Protests in Hong Kong

Hong Kong is definitely different from other Chinese cities. Hong Kong was a British colony for more than 150 years - part of it, Hong Kong island, was ceded to the UK after a war in 1842. 
The territory was also popular with migrants and dissidents fleeing instability, poverty or persecution in mainland China.
Then, in the early 1980s, as the deadline for the 99-year-lease approached, Britain and China began talks on the future of Hong Kong - with the communist government in China arguing that all of Hong Kong should be returned to Chinese rule.
The two sides reached a deal in 1984 that would see Hong Kong return to China in 1997, under the principle of "one country, two systems".
As a result, Hong Kong has its own legal system and borders, and rights including freedom of assembly and free speech are protected.

However, the country is currently on the agenda with great uprisings. Protests have continued in Hong Kong since April. The reason for these protests is the act adopted by the Hong Kong parliament. This act would have allowed extradition from Hong Kong to mainland China. 


The adoption of this law attracted the reaction of many people, especially young people. This reaction quickly turned into protests.


Western media soon began to follow the protests closely. Almost every day, many biased news about protests are shared. For this reason, CNN's news from May to August was examined.


First, the most used words were examined. The results of this research are as follows;

 [1] "after"          "also"           "and"            "are"            "arrested"       "been"           "bill"           "but"            "china"          "city"           "demonstrations"
[12] "extradition"    "for"            "from"           "had"            "has"            "have"           "hong"           "including"      "kong"           "last"           "long"       
[23] "monday"         "more"           "night"          "not"            "one"            "party"          "people"         "police"         "political"      "protest"        "protesters" 
[34] "protests"       "said"           "since"          "sunday"         "than"           "that"           "the"            "their"          "they"           "two"            "was"         
[45] "were"           "which"          "will"           "with"           "yuen"

Then, correlation analysis of some of the most commonly used words was examined. The first of the examined words is the China. The correlation analysis of the "China" word is as follows;

   mainland         mob         unlawful       station     between 
           0.98        0.98               0.98             0.97        0.96             
         movement      unrest                    accusations
               0.80        0.79                           0.76
   

As can be seen, one of the words with the highest correlation with China is unlawful. Then the correlation analysis of the word "police" was examined. The correlation analysis of the "police" word is as follows;

consecutive       march         weeks        people     kok          mong       
1.00                    1.00          1.00          0.96          0.92          0.92                 
demonstrators   extradition       support
          0.79          0.79                  0.79
       island         
         0.78       
As it is seen, the words that have the highest correlation with the word police are people, mong kok (one of the areas where protests continue) and arrest. Finally, the most commonly used words are shown in a graph.