<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Archiving and Interchange DTD v1.0 20120330//EN" "JATS-archivearticle1.dtd">
<article xmlns:xlink="http://www.w3.org/1999/xlink">
  <front>
    <journal-meta>
      <journal-title-group>
        <journal-title>ORCID:</journal-title>
      </journal-title-group>
    </journal-meta>
    <article-meta>
      <title-group>
        <article-title>A Study of Personal Finance Practices. The Case of Online Discussions on Reddit</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Valeriya Karpenko</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Kirill Mukhin</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Daria Rybakova</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Irina Busurkina</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Denis Bulygin</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Higher School of Economics</institution>
          ,
          <addr-line>16 Soyuza Pechatnikov Str., Saint-Petersburg, 190121</addr-line>
          ,
          <country country="RU">Russia</country>
        </aff>
      </contrib-group>
      <pub-date>
        <year>2021</year>
      </pub-date>
      <volume>000</volume>
      <fpage>0</fpage>
      <lpage>0002</lpage>
      <abstract>
        <p>Financial literacy is an important part of personal finance practices that can provide human well-being. Recent studies covered topics on financial decision-making, yet few papers showed the problems people discuss in online communities related to finances. The goal of our pilot study is to find out which problems people face in financial management and what is the context of those problems. We did this using computational text analysis techniques in an attempt to reveal the essential problems people ask for personal finance advice on social media. The work contributes to a discussion of studies of personal finance practices by exploring the problems and assessing their prevalence and sentiment in user communication.</p>
      </abstract>
      <kwd-group>
        <kwd>1 Financial literacy</kwd>
        <kwd>personal finance</kwd>
        <kwd>online communities</kwd>
        <kwd>netnography</kwd>
        <kwd>Reddit</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>1. Introduction</title>
      <p>Online discussions create huge amounts of information on a variety of topics. This data can be used
by researchers for various purposes - for example, to identify topics that users discuss most and further
analyze them. One of the topics that are widely discussed on social media platforms is personal finance.
Often, the level of financial literacy of people is not enough to make any serious financial decisions,
and therefore they ask for help in social networks or forums. Thus, huge sets of texts on finance and
related topics are formed, the analysis of which can help to identify the immediate problems of concern
to people and stimulate the development of products aimed at solving them.</p>
      <p>In this study, we explored the topics of finance discussed in the Personal Finance subreddit, which
is completely dedicated to this area. Also, within each topic discussed, we have identified the sub-topics
related to it, as well as the immediate issues that people in this community share and discuss.
Subsequently, such an approach can contribute to the development of products aimed at improving
people's financial literacy and helping in such situations.</p>
    </sec>
    <sec id="sec-2">
      <title>2. Background</title>
      <p>Reddit is an online platform that consists of channels, or subreddits, where users discuss various
topics online, from sports to health issues. Personal Finance is a subreddit where users discuss saving,
investing, retirement planning, and other practices connected to money management. It is the largest
online community on Reddit which consists of more than 14,5 million members and has existed since
February 2009. Each post is assigned to a category like “credit”, “taxes” and other related terms. This
subreddit was chosen to extract not only general topics mostly discussed in terms of personal finance
practices but also specific subtopics inside each broad category and reveal problems that people face in
money management.</p>
    </sec>
    <sec id="sec-3">
      <title>3. Related Work 3.1.</title>
    </sec>
    <sec id="sec-4">
      <title>Personal Finance Practices</title>
      <p>
        This research is focused on studying personal finance practices: how people manage finances, and
how their knowledge corresponds with their behavior. Financial practices are part of a larger concept
— financial capability, which refers to the ability to apply appropriate financial knowledge and perform
desirable financial behaviors to achieve financial well-being [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ]. Robb and Woodyard [
        <xref ref-type="bibr" rid="ref2">2</xref>
        ] suggested
that financial behavior is influenced by subjective and objective financial knowledge, income,
education, age, race, ethnicity, and financial satisfaction. However, this list can be continued. Analyzing
money management problems which people express in different ways, for example, online as in our
case, can reveal other connections. The ability to study the contents of the texts by subreddits allows
identifying what difficulties people have regarding particular spheres of their money use.
      </p>
      <p>
        According to the literature, self-assessment of financial literacy and observed financial behavior do
not always correlate [
        <xref ref-type="bibr" rid="ref3">3</xref>
        ], [
        <xref ref-type="bibr" rid="ref4">4</xref>
        ]. Our method can be useful in giving an outer view on money decisions
because the problems discussed online can be observed in relation to each other. As readers, we may
also be less subjective when evaluating these decisions because we are not aquated with some previous
posts of the author.
      </p>
      <p>
        Once again, financial practices are tightly connected with financial literacy. Higher levels of both
are associated with people sharing similar characteristics, like patience, superior numerical abilities,
motivation to deal with personal finances [
        <xref ref-type="bibr" rid="ref4">4</xref>
        ], [
        <xref ref-type="bibr" rid="ref5">5</xref>
        ]. These characteristics are not easy to grasp. This issue
can be considered in the opposite direction. As the purpose of this study is to reveal problems in money
management practices, we are interested in the characteristics which unite people who experience these
problems. And that leads us to the concept of online communities.
3.2
      </p>
    </sec>
    <sec id="sec-5">
      <title>Financial Literacy in Online Communities</title>
      <p>
        Despite the extended research on personal finance practices, there are few papers on the interaction
between financial management and online advice. Poston et al. [
        <xref ref-type="bibr" rid="ref6">6</xref>
        ] confirm that people who are less
confident in their ability to make good investment decisions based on online technology are more eager
to accept online financial advice. Also, they argue that people give the same value to the advice given
by humans and computers, and people trust credible experts with expertise more while making the final
financial decision. The latter may be applicable to our research in a way that people trust the advice in
comments more if the users who left them write of themselves as experts in a field. On the other hand,
Cwynar et al. showed that Facebook users who were more confident in their financial literacy about
debt were more inclined to seek advice [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ].
      </p>
      <p>
        Social media was proven to serve as a good tool to improve personal finance practices which led to
positive financial results [
        <xref ref-type="bibr" rid="ref8">8</xref>
        ] and increased financial knowledge [
        <xref ref-type="bibr" rid="ref9">9</xref>
        ]. Zhu et al. [
        <xref ref-type="bibr" rid="ref10">10</xref>
        ] showed that members
of the online community produced more risky financial behaviors than nonparticipants, whereas
submissions by traders on the social trading platform were confirmed to be replicated by followers [
        <xref ref-type="bibr" rid="ref11">11</xref>
        ].
      </p>
      <p>
        Social media are used to discuss financial issues despite not being specialized platforms for this like
Twitter which was utilized as a financial forum for online discussions in times of important financial
events [
        <xref ref-type="bibr" rid="ref12">12</xref>
        ]. Way et al. [
        <xref ref-type="bibr" rid="ref13">13</xref>
        ] confirmed that on the Internet, people mainly discuss financial topics aimed
at improving the ability to produce good financial behaviors, and some competing points of view were
found on social media. One of them is the contradiction to the claim by the Financial Literacy and
Education Commission to start saving early and living on their earnings. In comments, people argued
it was not always possible due to reasons they could not influence like a crisis. Also, users of online
forums mentioned that financial planning was not always possible due to the expectations of others and
that financial knowledge was usually inapplicable to financial decision-making in practice. The paper
by Way [
        <xref ref-type="bibr" rid="ref13">13</xref>
        ] covered some aspects people discussed in online forums dedicated to financial practices.
In our work, we want to dive deeper into the topic of financial issues people worry about and discover,
what problems people describe related to personal finance practices in online discussions on Reddit?
      </p>
    </sec>
    <sec id="sec-6">
      <title>4. Methodology, Data, and Method 4.1</title>
    </sec>
    <sec id="sec-7">
      <title>Methodology</title>
      <p>
        Netnography as a research methodology was chosen to study practices of money management. This
approach combines both qualitative and quantitative methods of studying online communities by the
use of ethnography with participant observation and systematic analysis of large amounts of quantitative
data [
        <xref ref-type="bibr" rid="ref14">14</xref>
        ]. Such a hybrid type of research is helpful in studying numerous digital traces left by members
of online communities. As it is hard to go through all user-generated data by hand, the qualitative part
is used. The digital data is gathered and analyzed by computational text analysis and similar techniques
to find the major patterns of the community. After they are identified, the researcher applies qualitative
methods to illustrate these patterns by the most distinctive examples like posts by particular users and
following discussion in comments.
      </p>
      <p>In our research, we identified problems that users face in everyday life connected to money
management practice reported by the members of the Personal Finance community on Reddit. It was
done by the computational text analysis and other data analysis techniques along with a manual
examination of quantitatively chosen data. The existing problems and topics discussed by users were
illustrated by the examples of posts and comments to confirm their existence and peculiarity from each
other. Also, by qualitative analysis, it was found that major posts include several rather than one topic
as the tags of posts in the community stated.</p>
      <p>All data were retrieved from the public platform meaning users who left their submissions on the
page agree to share their opinions which are freely viewed by other people.
4.2</p>
    </sec>
    <sec id="sec-8">
      <title>Data 4.3</title>
    </sec>
    <sec id="sec-9">
      <title>Method</title>
      <p>The dataset consists of 237 unique posts from 21.09.2018 to 09.02.2021 with a total of 3,939
comments from the Personal Finance subreddit. To obtain the text corpus, the RedditExtractoR package
and R programming language were used.</p>
      <p>
        The text analysis was conducted on all text data where a post and a comment were separate units.
After primary data preprocessing by the use of computational methods of text analysis, the RAKE was
used for keywords extraction. This is a Rapid Automatic Keyword Extraction (RAKE) [
        <xref ref-type="bibr" rid="ref15">15</xref>
        ] algorithm
that omits delimiters and stopwords and takes into account the word co-occurrences and their frequency
in the text. By this, we extracted top-200 keyword phrases by the number of times they appeared in
unique texts, posts, or comments, consisting of simple noun phrases.
      </p>
      <p>Then we manually filtered phrases and transformed similar phrases to the same form, manually
divided them into broad 12 topics and for each defined subtopics. Overall, we had 44 subtopics which
are more specific problems users discussed in online discussions. For each topic and subtopic, the
sentiment was gained via the vader package which works well with slang and texts of online
communication. For each topic and subtopic, median and mean compound scores were calculated which
is a normalized unidimensional measure for sentiment to evaluate the emotional attachment of a
particular topic. Then, we extracted examples of financial problems that people describe in messages
from discussions by searching for keywords of each topic in these texts.</p>
    </sec>
    <sec id="sec-10">
      <title>5. Analysis and Results</title>
      <p>The most frequent topics of discussion are ‘credit, loans and dealing with banks’ (1266 texts related
to this topic), ‘money management’ (1174), and ‘real estate issues (car, house)’ (880). The first consists
of 7 subtopics including ‘credit history’, ‘bank account’, ‘credit’, etc. ‘Money management’ is the
broadest topic with 12 subtopics such as ‘saving’, ‘personal finance system’, and ‘minimization of
costs’. The last includes 4 subtopics of ‘type of insurance’ and ‘borrowing money’. The full list of topics
and corresponding subtopics is provided in Table 1.</p>
      <p>Among the problems we highlighted in discussions on ‘credit, loans and dealing with banks’, people
talk about how to open a bank account, how to improve credit score, whether student credit cards as a
payment tool is a good way to start gaining financial literacy, etc. Within the ‘money management’
topic, such problems as managing finances and getting out from living paycheck to paycheck, lack of</p>
      <sec id="sec-10-1">
        <title>Credit, Loans, and</title>
        <p>other Banking</p>
      </sec>
      <sec id="sec-10-2">
        <title>Operations</title>
      </sec>
      <sec id="sec-10-3">
        <title>Money Management</title>
      </sec>
      <sec id="sec-10-4">
        <title>Real Estate and other</title>
      </sec>
      <sec id="sec-10-5">
        <title>Types of Property (car, house)</title>
      </sec>
      <sec id="sec-10-6">
        <title>Advice in Financial</title>
      </sec>
      <sec id="sec-10-7">
        <title>Management</title>
      </sec>
      <sec id="sec-10-8">
        <title>Taxes</title>
      </sec>
      <sec id="sec-10-9">
        <title>Life Insurance</title>
      </sec>
      <sec id="sec-10-10">
        <title>Retirement Issues</title>
      </sec>
      <sec id="sec-10-11">
        <title>Investment</title>
      </sec>
      <sec id="sec-10-12">
        <title>Student and School</title>
      </sec>
      <sec id="sec-10-13">
        <title>Payments</title>
      </sec>
      <sec id="sec-10-14">
        <title>Employment Issues</title>
      </sec>
      <sec id="sec-10-15">
        <title>Criminal Activities and</title>
      </sec>
      <sec id="sec-10-16">
        <title>Investigation Business 1266 1174</title>
        <p>880
563
317
292
255
245
182
132
66
49</p>
      </sec>
      <sec id="sec-10-17">
        <title>Median Compound Score 0.67 0.74</title>
        <p>0.73
0.84
0.69
0.80
0.81
0.73
0.78
0.78
-0.14
0.86</p>
      </sec>
      <sec id="sec-10-18">
        <title>Examples of Problems</title>
      </sec>
      <sec id="sec-10-19">
        <title>Bad credit history, high fee account, late payments</title>
      </sec>
      <sec id="sec-10-20">
        <title>Lack of knowledge to make a</title>
        <p>financial plan and increase income</p>
      </sec>
      <sec id="sec-10-21">
        <title>Choice of mortgage type, paying off a car loan</title>
      </sec>
      <sec id="sec-10-22">
        <title>Advice on investing, teaching</title>
        <p>financial literacy at school</p>
      </sec>
      <sec id="sec-10-23">
        <title>Maximizing an Individual</title>
      </sec>
      <sec id="sec-10-24">
        <title>Retirement Account (Roth IRA) contributions, bad understanding of the tax system</title>
      </sec>
      <sec id="sec-10-25">
        <title>Securing money, lack of knowledge</title>
        <p>about social security benefits</p>
      </sec>
      <sec id="sec-10-26">
        <title>Maximization of retirement savings, retirement planning</title>
      </sec>
      <sec id="sec-10-27">
        <title>Choice of a financial service, lack of knowledge to start investing, maximizing income from investments</title>
      </sec>
      <sec id="sec-10-28">
        <title>Need for advice on student loans,</title>
        <p>taxes for international students</p>
      </sec>
      <sec id="sec-10-29">
        <title>Choice between highly-paid and</title>
        <p>satisfactory job, too low salary to
cover regular expenses</p>
      </sec>
      <sec id="sec-10-30">
        <title>Protection from fraudulent charges,</title>
        <p>parents spoiling kids’ credit history</p>
      </sec>
      <sec id="sec-10-31">
        <title>Precondition to start a business, managing business experience</title>
        <p>knowledge on investment, efficient contribution to retirement funds, and so on. Finally, among the ‘real
estate issues (car, house)’ discussions, there are problems of choosing an efficient mortgage type and
obstacles to applying for credit.</p>
        <p>Most topics have a positive mean or median sentiment with a value above 0.65 on (-1;1) scale. The
only negative topic is related to criminal activities and investigation with a mean compound score of
0.08 and a median of -0.14. The most positive topics are related to business (mean: 0.68; median: 0.86),
adviсes in financial management, teaching and learning (0.61, 0.84) and retirement issues (0.63, 0,81).
The most neutral topics are ‘credit, loans and dealing with banks’ (0.46, 0.67) and taxes (0.47, 0.68).</p>
        <p>Out of the subtopics, ‘passive income’ turned out to be the most positive subtopic discussed with an
average compound score of 0.9 and a median of 0.97. Among the subsequent positive subtopics,
‘business services’ and ‘financial education’ also stand out. The only subtopic with negative central
tendency measures was ‘crime and money’ (-0.08, -0,14) as the only one included in the ‘criminal
activities and investigation’ topic. Others were revealed to be mostly positive with scores above 0.05.</p>
      </sec>
    </sec>
    <sec id="sec-11">
      <title>6. Discussion and Conclusion</title>
      <p>In this study, we broadened the field of online discussions research and showed how they could
contribute to the understanding of people's real-life problems. First of all, since we work with a part of
the social network where people discuss pressing issues and questions that interest them, the topics and
subtopics themselves can be extracted for a preliminary analysis of what bothers people and what is
most important. Sentiment analysis can serve as an auxiliary tool for understanding not only what topics
people discuss, but also which ones cause them more or fewer emotions - positive or negative, which
also gives an understanding of how acute the topic is.</p>
      <p>Highlighting the problems within each topic and analyzing them can give a focus on certain aspects
of people's financial life, which can later be used to develop products aimed at helping people in these
areas. In the case of the study, the conducted analysis of phrases and their frequencies will be used
further to define user pains and jobs-to-be-done, and sentiment analysis will help us to explore situations
that people are very emotional about and understand user pains better.</p>
      <p>Thus, services with online discussions like forums or social networks can serve as a strong basis for
making strategic decisions to develop in-demand products that can help people make the right decisions
and improve their financial literacy. This approach can also go beyond the topic of discussion of finance,
expanding opportunities for the study and development of products designed to help with identified
problems in many other areas of life.</p>
    </sec>
    <sec id="sec-12">
      <title>7. References</title>
    </sec>
  </body>
  <back>
    <ref-list>
      <ref id="ref1">
        <mixed-citation>
          [1]
          <string-name>
            <given-names>J. J.</given-names>
            <surname>Xiao</surname>
          </string-name>
          ,
          <string-name>
            <given-names>C.</given-names>
            <surname>Chen</surname>
          </string-name>
          , and
          <string-name>
            <given-names>F.</given-names>
            <surname>Chen</surname>
          </string-name>
          ,
          <source>Consumer Financial Capability and Financial Satisfaction, Soc. Indic. Res.</source>
          , vol.
          <volume>118</volume>
          , pp.
          <fpage>415</fpage>
          -
          <lpage>432</lpage>
          , Aug.
          <year>2013</year>
          , doi: 10.1007/s11205-013-0414-8.
        </mixed-citation>
      </ref>
      <ref id="ref2">
        <mixed-citation>
          [2]
          <string-name>
            <given-names>C. A.</given-names>
            <surname>Robb</surname>
          </string-name>
          and
          <string-name>
            <given-names>A. S.</given-names>
            <surname>Woodyard</surname>
          </string-name>
          ,
          <article-title>Financial knowledge and best practice behavior</article-title>
          ,
          <source>J. Financ. Couns. Plan.</source>
          , vol.
          <volume>22</volume>
          , no.
          <issue>1</issue>
          , pp.
          <fpage>60</fpage>
          -
          <lpage>70</lpage>
          ,
          <year>2011</year>
          .
        </mixed-citation>
      </ref>
      <ref id="ref3">
        <mixed-citation>
          [3]
          <string-name>
            <given-names>J. M.</given-names>
            <surname>Collins</surname>
          </string-name>
          ,
          <string-name>
            <given-names>R. N.</given-names>
            <surname>Gorey</surname>
          </string-name>
          ,
          <string-name>
            <given-names>M. D.</given-names>
            <surname>Schmeiser</surname>
          </string-name>
          ,
          <string-name>
            <given-names>C. A.</given-names>
            <surname>Baker</surname>
          </string-name>
          , and
          <string-name>
            <given-names>D.</given-names>
            <surname>Ziegler</surname>
          </string-name>
          ,
          <article-title>Building indicators measures: analysis and recommendations</article-title>
          .
        </mixed-citation>
      </ref>
      <ref id="ref4">
        <mixed-citation>
          [4]
          <string-name>
            <given-names>J.</given-names>
            <surname>Hastings</surname>
          </string-name>
          and
          <string-name>
            <given-names>O.</given-names>
            <surname>Mitchell</surname>
          </string-name>
          ,
          <article-title>How Financial Literacy and Impatience Shape Retirement Wealth and Investment Behaviors, SSRN Electron</article-title>
          . J.,
          <source>Oct</source>
          .
          <year>2010</year>
          , doi: 10.2139/ssrn.1710146.
        </mixed-citation>
      </ref>
      <ref id="ref5">
        <mixed-citation>
          [5]
          <string-name>
            <given-names>O. A.</given-names>
            <surname>Stolper</surname>
          </string-name>
          and
          <string-name>
            <given-names>A.</given-names>
            <surname>Walter</surname>
          </string-name>
          ,
          <article-title>Financial literacy, financial advice, and financial behavior</article-title>
          ,
          <source>J. Bus. Econ.</source>
          , vol.
          <volume>87</volume>
          , no.
          <issue>5</issue>
          , pp.
          <fpage>581</fpage>
          -
          <lpage>643</lpage>
          , Jul.
          <year>2017</year>
          , doi: 10.1007/s11573-017-0853-9.
        </mixed-citation>
      </ref>
      <ref id="ref6">
        <mixed-citation>
          [6]
          <string-name>
            <given-names>R.</given-names>
            <surname>Poston</surname>
          </string-name>
          ,
          <string-name>
            <given-names>C. A.</given-names>
            <surname>Looney</surname>
          </string-name>
          ,
          <article-title>and</article-title>
          <string-name>
            <given-names>A.</given-names>
            <surname>Akbulut</surname>
          </string-name>
          ,
          <source>How Advice and Its Source Characteristics Prompts Changes in Investment Decisions</source>
          ,
          <year>2007</year>
          .
        </mixed-citation>
      </ref>
      <ref id="ref7">
        <mixed-citation>
          [7]
          <string-name>
            <given-names>A.</given-names>
            <surname>Cwynar</surname>
          </string-name>
          ,
          <string-name>
            <given-names>W.</given-names>
            <surname>Cwynar</surname>
          </string-name>
          ,
          <string-name>
            <given-names>M.</given-names>
            <surname>Kowerski</surname>
          </string-name>
          ,
          <string-name>
            <given-names>K.</given-names>
            <surname>Filipek</surname>
          </string-name>
          , and
          <string-name>
            <given-names>P.</given-names>
            <surname>Szuba</surname>
          </string-name>
          ,
          <article-title>Debt literacy and debt adviceseeking behaviour among Facebook users: the role of social networks</article-title>
          ,
          <source>Balt. J. Econ.</source>
          , vol.
          <volume>20</volume>
          , no.
          <issue>1</issue>
          , pp.
          <fpage>1</fpage>
          -
          <lpage>33</lpage>
          , Jan.
          <year>2020</year>
          , doi: 10.1080/1406099X.
          <year>2019</year>
          .
          <volume>1693142</volume>
          .
        </mixed-citation>
      </ref>
      <ref id="ref8">
        <mixed-citation>
          [8]
          <string-name>
            <given-names>Y.</given-names>
            <surname>Cao</surname>
          </string-name>
          ,
          <string-name>
            <given-names>F.</given-names>
            <surname>Gong</surname>
          </string-name>
          , and
          <string-name>
            <given-names>T.</given-names>
            <surname>Zeng</surname>
          </string-name>
          ,
          <article-title>Antecedents and Consequences of Using Social Media for Personal Finance</article-title>
          ,
          <string-name>
            <surname>J. Financ. Couns. Plan.</surname>
          </string-name>
          , vol.
          <volume>31</volume>
          , no.
          <issue>1</issue>
          , pp.
          <fpage>162</fpage>
          -
          <lpage>176</lpage>
          , Jun.
          <year>2020</year>
          , doi: 10.
          <year>1891</year>
          /JFCP-18- 00049.
        </mixed-citation>
      </ref>
      <ref id="ref9">
        <mixed-citation>
          [9]
          <string-name>
            <given-names>M. Iseri</given-names>
            <surname>Çetiner</surname>
          </string-name>
          and
          <string-name>
            <given-names>A.</given-names>
            <surname>Çilingirtürk</surname>
          </string-name>
          ,
          <source>The Effect of Social Networks on Financial Literacy, Sosyoekonomi</source>
          , pp.
          <fpage>41</fpage>
          -
          <lpage>56</lpage>
          , Jul.
          <year>2019</year>
          , doi: 10.17233/sosyoekonomi.
          <year>2019</year>
          .
          <volume>03</volume>
          .02.
        </mixed-citation>
      </ref>
      <ref id="ref10">
        <mixed-citation>
          [10]
          <string-name>
            <given-names>R.</given-names>
            <surname>(Juliet) Zhu</surname>
          </string-name>
          ,
          <string-name>
            <given-names>U. M.</given-names>
            <surname>Dholakia</surname>
          </string-name>
          ,
          <string-name>
            <surname>X.</surname>
          </string-name>
          (
          <article-title>Jack) Chen, and</article-title>
          <string-name>
            <given-names>R.</given-names>
            <surname>Algesheimer</surname>
          </string-name>
          , Does Online Community Participation Foster Risky Financial Behavior?,
          <source>J. Mark. Res.</source>
          , vol.
          <volume>49</volume>
          , no.
          <issue>3</issue>
          , pp.
          <fpage>394</fpage>
          -
          <lpage>407</lpage>
          , Jun.
          <year>2012</year>
          , doi: 10.1509/jmr.08.0499.
        </mixed-citation>
      </ref>
      <ref id="ref11">
        <mixed-citation>
          [11]
          <string-name>
            <given-names>M.</given-names>
            <surname>Ammann</surname>
          </string-name>
          and
          <string-name>
            <given-names>N.</given-names>
            <surname>Schaub</surname>
          </string-name>
          ,
          <source>The Impact of Internet Postings on Individual Investors</source>
          ,
          <year>2017</year>
          . /paper/The-Impact-
          <article-title>of-Internet-Postings-on-Individual-AmmannSchaub/98d2eaf35a1ae29289c4abfdd18ec7dac2177bc3 (accessed Apr</article-title>
          .
          <volume>10</volume>
          ,
          <year>2021</year>
          ).
        </mixed-citation>
      </ref>
      <ref id="ref12">
        <mixed-citation>
          [12]
          <string-name>
            <given-names>A.</given-names>
            <surname>Fernández</surname>
          </string-name>
          <string-name>
            <surname>Vilas</surname>
          </string-name>
          ,
          <string-name>
            <given-names>R. P.</given-names>
            <surname>Díaz Redondo</surname>
          </string-name>
          ,
          <string-name>
            <given-names>K.</given-names>
            <surname>Crockett</surname>
          </string-name>
          ,
          <string-name>
            <given-names>M.</given-names>
            <surname>Owda</surname>
          </string-name>
          , and
          <string-name>
            <given-names>L.</given-names>
            <surname>Evans</surname>
          </string-name>
          ,
          <article-title>Twitter permeability to financial events: an experiment towards a model for sensing irregularities</article-title>
          ,
          <source>Multimed. Tools Appl.</source>
          , vol.
          <volume>78</volume>
          , no.
          <issue>7</issue>
          , pp.
          <fpage>9217</fpage>
          -
          <lpage>9245</lpage>
          , Apr.
          <year>2019</year>
          , doi: 10.1007/s11042-018-6388- 4.
        </mixed-citation>
      </ref>
      <ref id="ref13">
        <mixed-citation>
          [13]
          <string-name>
            <given-names>W.</given-names>
            <surname>Way</surname>
          </string-name>
          ,
          <string-name>
            <given-names>N.</given-names>
            <surname>Wong</surname>
          </string-name>
          , and
          <string-name>
            <given-names>D.</given-names>
            <surname>Gibbons</surname>
          </string-name>
          <string-name>
            <surname>Pyles</surname>
          </string-name>
          ,
          <article-title>Online talk about money: An investigation of interactions around personal finance in social media</article-title>
          ,
          <source>Proc. Assoc</source>
          . Financ. Couns. Plan. Educ.,
          <string-name>
            <surname>Jan</surname>
          </string-name>
          .
          <year>2012</year>
          .
        </mixed-citation>
      </ref>
      <ref id="ref14">
        <mixed-citation>
          [14]
          <string-name>
            <given-names>R.</given-names>
            <surname>Kozinets</surname>
          </string-name>
          , Netnography: Doing Ethnographic Research Online.
          <year>2010</year>
          .
        </mixed-citation>
      </ref>
      <ref id="ref15">
        <mixed-citation>
          [15]
          <string-name>
            <given-names>S.</given-names>
            <surname>Rose</surname>
          </string-name>
          ,
          <string-name>
            <given-names>D.</given-names>
            <surname>Engel</surname>
          </string-name>
          ,
          <string-name>
            <given-names>N.</given-names>
            <surname>Cramer</surname>
          </string-name>
          , and
          <string-name>
            <given-names>W.</given-names>
            <surname>Cowley</surname>
          </string-name>
          ,
          <article-title>Automatic Keyword Extraction from Individual Documents</article-title>
          ,
          <source>in Text Mining: Applications and Theory</source>
          ,
          <year>2010</year>
          , pp.
          <fpage>1</fpage>
          -
          <lpage>20</lpage>
          . doi:
          <volume>10</volume>
          .1002/9780470689646.ch1.
        </mixed-citation>
      </ref>
    </ref-list>
  </back>
</article>