Major and reliable scientists in the country, such as: Professor, Dr. Le Cam, Professor, Dr. Dao Tri Uc, Professor, Dr. Nguyen Ngoc Hoa, Dr. Tran Quang Tiep...
However, since the first codification of our country's criminal law (1985 Criminal Code) and the second (1999 Criminal Code) up to now, there has not been any specialized work that systematically, comprehensively and richly researches the principle of fault liability, so many issues related to fault have not been thoroughly resolved, and there has not been a complete assessment of the practical application of criminal law related to the principle of fault liability in order to make recommendations for improving criminal law in general and related to the principle of fault liability in particular.
Therefore, it is extremely necessary and important to conduct a complete, comprehensive and systematic study on the principle of liability due to fault in the Criminal Law from both the theoretical and practical perspectives of applying the Criminal Law in order to propose solutions to perfect the Criminal Law as well as improve the effectiveness of applying the Criminal Law related to fault in investigation, prosecution and trial.
3. Purpose and tasks of the Thesis research :
3.1. Purpose :
Maybe you are interested!
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Subject and Scope of Thesis Research -
State the Research Reason, Research Problem, Objective, Subject, Scope of Research, Method, Data, Main Contributions and Structure -
Mobile Phone Usage in Hanoi Inner City Area
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- Test the relationship between demographic variables and consumer behavior for Mobile Marketing activities
The analysis method used is the Chi-square test (χ2), with statistical hypotheses H0 and H1 and significance level α = 0.05. In case the P index (p-value) or Sig. index in SPSS has a value less than or equal to the significance level α, the hypothesis H0 is rejected and vice versa. With this testing procedure, the study can evaluate the difference in behavioral trends between demographic groups.
CHAPTER 4
RESEARCH RESULTS
During two months, 1,100 survey questionnaires were distributed to mobile phone users in the inner city of Hanoi using various methods such as direct interviews, sending via email or using questionnaires designed on the Internet. At the end of the survey, after checking and eliminating erroneous questionnaires, the study collected 858 complete questionnaires, equivalent to a rate of about 78%. In addition, the research subjects of the thesis are only people who are using mobile phones, so people who do not use mobile phones are not within the scope of the thesis, therefore, the questionnaires with the option of not using mobile phones were excluded from the scope of analysis. The number of suitable survey questionnaires included in the statistical analysis was 835.
4.1 Demographic characteristics of the sample
The structure of the survey sample is divided and statistically analyzed according to criteria such as gender, age, occupation, education level and personal income. (Detailed statistical table in Appendix 6)
- Gender structure: Of the 835 completed questionnaires, 49.8% of respondents were male, equivalent to 416 people, and 50.2% were female, equivalent to 419 people. The survey results of the study are completely consistent with the gender ratio in the population structure of Vietnam in general and Hanoi in particular (Male/Female: 49/51).
- Age structure: 36.6% of respondents are <23 years old, equivalent to 306 people. People from 23-34 years old
accounting for the highest proportion: 44.8% equivalent to 374 people, people aged 35-45 and >45 are 70 and 85 people equivalent to 8.4% and 10.2% respectively. Looking at the results of this survey, we can see that the young people - youth account for a large proportion of the total number of people participating in the survey. Meanwhile, the middle-aged people including two age groups of 35 - 45 and >45 have a low rate of participation in the survey. This is completely consistent with the reality when Mobile Marketing is identified as a Marketing service aimed at young people (people under 35 years old).
- Structure by educational level: among 835 valid responses, 541 respondents had university degrees, accounting for the highest proportion of ~ 75%, 102 had secondary school degrees, ~ 13.1%, and 93 had post-graduate degrees, ~ 11.9%.
- Occupational structure: office workers and civil servants are the group with the highest rate of participation with 39.4%, followed by students with 36.6%. Self-employed people account for 12%, retired housewives are 7.8% and other occupational groups account for 4.2%. The survey results show that the student group has the same rate as the group aged <23 at 36.6%. This shows the accuracy of the survey data. In addition, the survey results distributed by occupational criteria have a rate almost similar to the sample division rate in chapter 3. Therefore, it can be concluded that the survey data is suitable for use in analysis activities.
- Income structure: the group with income from 3 to 5 million has the highest rate with 39% of the total number of respondents. This is consistent with the income structure of Hanoi people and corresponds to the average income of the group of civil servants and office workers. Those
People with no income account for 23%, income under 3 million VND accounts for 13% and income over 5 million VND accounts for 25%.
4.2 Mobile phone usage in Hanoi inner city area
According to the survey results, most respondents said they had used the phone for more than 1 year, specifically: 68.4% used mobile phones from 4 to 10 years, 23.2% used from 1 to 3 years, 7.8% used for more than 10 years. Those who used mobile phones for less than 1 year accounted for only a very small proportion of ~ 0.6%. (Table 4.1)
Table 4.1: Time spent using mobile phones
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Alid
<1 year
5
.6
.6
.6
1-3 years
194
23.2
23.2
23.8
4-10 years
571
68.4
68.4
92.2
>10 years
65
7.8
7.8
100.0
Total
835
100.0
100.0
The survey indexes on the time of using mobile phones of consumers in the inner city of Hanoi are very impressive for a developing country like Vietnam and also prove that Vietnamese consumers have a lot of experience using this high-tech device. Moreover, with the majority of consumers surveyed having a relatively long time of use (4-10 years), it partly proves that mobile phones have become an important and essential item in people's daily lives.
When asked about the mobile phone network they are using, 31% of respondents said they are using the network of Vietel company, 29% use the network of
of Mobifone company, 27% use Vinaphone company's network and 13% use networks of other providers such as E-VN telecom, S-fone, Beeline, Vietnammobile. (Figure 4.1).
Figure 4.1: Mobile phone network in use
Compared with the announced market share of mobile telecommunications service providers in Vietnam (Vietel: 36%, Mobifone: 29%, Vinaphone: 28%, the remaining networks: 7%), we see that the survey results do not have many differences. However, the statistics show that there is a difference in the market share of other networks because the Hanoi market is one of the two main markets of small networks, so their market share in this area will certainly be higher than that of the whole country.
According to a report by NielsenMobile (2009) [8], the number of prepaid mobile phone subscribers in Hanoi accounts for 95% of the total number of subscribers, however, the results of this survey show that the percentage of prepaid subscribers has decreased by more than 20%, only at 70.8%. On the contrary, the number of postpaid subscribers tends to increase from 5% in 2009 to 19.2%. Those who are simultaneously using both types of subscriptions account for 10%. (Table 4.2).
Table 4.2: Types of mobile phone subscribers
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Valid
Prepay
591
70.8
70.8
70.8
Pay later
160
19.2
19.2
89.9
Both of the above
84
10.1
10.1
100.0
Total
835
100.0
100.0
The above figures show the change in the psychology and consumption habits of Vietnamese consumers towards mobile telecommunications services, when the use of prepaid subscriptions and junk SIMs is replaced by the use of two types of subscriptions for different purposes and needs or switching to postpaid subscriptions to enjoy better customer care services.
In addition, the majority of respondents have an average spending level for mobile phone services from 100 to 300 thousand VND (406 ~ 48.6% of total respondents). The high spending level (> 500 thousand VND) is the spending level with the lowest number of people with only 8.4%, on the contrary, the low spending level (under 100 thousand VND) accounts for the second highest proportion among the groups of respondents with 25.4%. People with low spending levels mainly fall into the group of students and retirees/housewives - those who have little need to use or mainly use promotional SIM cards. (Table 4.3).
Table 4.3: Spending on mobile phone charges
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Valid
<100,000
212
25.4
25.4
25.4
100-300,000
406
48.6
48.6
74.0
300,000-500,000
147
17.6
17.6
91.6
>500,000
70
8.4
8.4
100.0
Total
835
100.0
100.0
The statistics in Table 4.3 are similar to the percentages in the NielsenMobile survey results (2009) with 73% of mobile phone users having medium spending levels and only 13% having high spending levels.
The survey results also showed that up to 31% ~ nearly one-third of respondents said they sent more than 10 SMS messages/day, meaning that on average they sent 1 SMS message for every working hour. Those with an average SMS message volume (from 3 to 10 messages/day) accounted for 51.1% and those with a low SMS message volume (less than 3 messages/day) accounted for 17%. (Table 4.4)
Table 4.4: Number of SMS messages sent per day
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Valid
<3 news
142
17.0
17.0
17.0
3-10 news
427
51.1
51.1
68.1
>10 news
266
31.9
31.9
100.0
Total
835
100.0
100.0
Similar to sending messages, those with an average message receiving rate (from 3-10 messages/day) accounted for the highest percentage of ~ 55%, followed by those with a high number of messages (over 10 messages/day) ~ 24% and those with a low number of messages received daily (under 3 messages/day) remained at the bottom with 21%. (Table 4.5)
Table 4.5: Number of SMS messages received per day
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Valid
<3 news
175
21.0
21.0
21.0
3-10 news
436
55.0
55.0
76.0
>10 news
197
24.0
24.0
100.0
Total
835
100.0
100.0
When comparing the data of the two result tables 4.4 and 4.5, we can see the reasonableness between the ratio of the number of messages sent and the number of messages received daily by the interview participants.
4.3 Current status of SMS advertising and Mobile Marketing
According to the interview results, in the 3 months from the time of the survey and before, 94% of respondents, equivalent to 785 people, said they received advertising messages, while only a very small percentage of 6% (only 50 people) did not receive advertising messages (Table 4.6).
Table 4.6: Percentage of people receiving advertising messages in the last 3 months
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Valid
Have
785
94.0
94.0
94.0
Are not
50
6.0
6.0
100.0
Total
835
100.0
100.0
The results of Table 4.6 show that consumers in the inner city of Hanoi are very familiar with advertising messages. This result is also the basis for assessing the knowledge, experience and understanding of the respondents in the interview. This is also one of the important factors determining the accuracy of the survey results.
In addition, most respondents said they had received promotional messages, but only 24% of them had ever taken the action of registering to receive promotional messages, while 76% of the remaining respondents did not register to receive promotional messages but still received promotional messages every day. This is the first sign indicating the weaknesses and shortcomings of lax management of this activity in Vietnam. (Table 4.7)
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Evaluation of Research Situation and Issues Raised for the Thesis -
Issues That Need Further Research in the Thesis
The thesis research aims to achieve the following objectives:
- Building a system of knowledge on the principle of liability due to fault in Vietnamese Criminal Law.

- Affirming the historical value of the formation and development of the principle of liability due to fault of the Criminal Law.
- Solving the relationship between the principle of liability due to fault of Vietnamese Criminal Law in comparison with the principle of liability due to fault of Criminal Law of some countries in the world.
- Proposing solutions to improve the Criminal Code related to the issue of fault and the principle of responsibility due to the fault of the criminal law, contributing to improving the effectiveness of applying the Criminal Code in the fight against crime.
3.2. Research tasks of the Thesis:
To achieve the set objectives, the thesis focuses on solving the following main tasks:
Firstly , to study theoretical issues on criminal fault and the principle of fault liability in Vietnamese Criminal Law, answering the question of why it is necessary to study the principle of fault liability of LHS;
Second , to study the general history of our country's criminal legislation on the principle of fault liability; to study the relationship between the principle of fault liability and other principles of the Criminal Code;
Third , study the manifestation of the principle of fault liability in the current Penal Code, comparing it with the principle of fault liability in the criminal law of some countries in the world; clarify the shortcomings and limitations of the Penal Code related to the principle of fault liability;
Fourth , research on the practical application of the Criminal Code in investigation, prosecution, and trial from the perspective of meeting the requirements of the principle of responsibility due to fault;
Fifth , to provide complete viewpoints and propose solutions to complete the Penal Code as well as improve the effectiveness of applying the Penal Code, meeting the requirements set forth by the principle of responsibility due to fault.
4. Object and scope of the Thesis:
4.1. Research objects :
The thesis focuses on analyzing scientific arguments on the issue of fault, on the principle of fault liability of the Criminal Law, thereby clarifying the content and meaning of this principle in the Criminal Code, the expression of that content in the provisions of the current Criminal Code. The thesis focuses on studying the provisions on criminal fault, on the principle of fault liability of the Criminal Code from the history of formation to the provisions of the current Criminal Code, comparing with the principle of fault liability of the Criminal Law of some countries in the world. Studying the limitations of the current Criminal Code related to criminal fault and making recommendations to improve the Criminal Code to ensure the principle of fault liability.
4.2. Scope of the Thesis :
The principle of liability due to fault of the LHS has a relatively wide scope and level of impact. However, from the purpose and tasks of the research, the thesis focuses on studying general theoretical issues about fault in the Vietnamese LHS, on the principle of liability due to fault in the Vietnamese Criminal Law, studying the manifestation of the principle of liability due to fault in the current Vietnamese Penal Code, studying the application of the principle of liability due to fault in the practice of criminal trials, studying the shortcomings and limitations of the Penal Code related to fault and the principle of liability due to fault of the LHS in order to find solutions to improve the Penal Code.
5. Theoretical basis and research methods :
5.1. Theoretical basis :
To achieve the purpose and tasks of the research, as a research topic on criminal legal science, the research of the topic is based on the methodology of dialectical materialism and historical materialism of Marxism-Leninism, Ho Chi Minh's thought on the State and the rule of law; the viewpoints, guidelines and policies of our Party and State on the State and law, on criminal policy and judicial reform, on the fight against and prevention of crime in the current period. That is the basic basis to help the Thesis clarify theoretical issues on criminal fault, on the concept, content and meaning of the principle of fault liability of the Vietnamese Criminal Law, the unique characteristics and inherited values of the content of the principle of fault liability in the provisions of the 1999 Penal Code. Thereby, the Thesis will clarify the content and meaning of this principle in the provisions of the Penal Code as well as the need to perfect the Criminal Law related to the principle of fault liability.
5.2. Research method :
The thesis uses many research methods, the research and approach to the research issues are based on methods such as:
systematic method, analysis, synthesis, history, comparison, statistics, practical survey and expert consultation... In the combination of many different research methods in the Thesis, the method of legal norm analysis plays a leading role.
6. Theoretical and practical significance of the Thesis :
In terms of theory : This is a scientific work, systematically and comprehensively researching the principle of liability due to fault of the Criminal Law from many perspectives; determining the scientific, theoretical and practical basis for perfecting the principle of liability due to fault of the Criminal Law, thereby contributing to perfecting the criminal policy of our State in the fight against crime.
In terms of practice : The research results and recommendations of the Thesis have important significance for law enforcement activities in investigation, prosecution and trial of criminal cases; contribute to the dissemination and education of criminal law; are useful reference materials for students, postgraduates, lawyers and those interested in researching the field of Criminal Justice.
7. New points of the Thesis:
Firstly , this is the first monograph at the doctoral thesis level in Vietnamese Criminal Law science since the first codification of the Criminal Law (1985), which comprehensively, fully and systematically studies the principle of liability due to fault of the Criminal Law.
Second , to build a system of theoretical issues related to fault and the principle of responsibility due to fault of LHS, such as: The concept of criminal fault, the concept of a person with criminal fault, the concept of the principle of unintentional fault in LHS and the concept of the principle of responsibility due to fault in Criminal Law, the requirements and the expression of the principle of responsibility due to fault in Criminal Law...
Third , analyze the expression of the principle of responsibility due to fault in the General Part as well as the Crimes Part of the Penal Code; clarify the inadequacies and limitations of the Penal Code related to the issue of fault;
Fourth , evaluate the practical activities of investigation, prosecution, and trial in applying the provisions of the Criminal Code related to the principle of liability due to fault; point out difficulties and problems to find solutions;
Fifth , based on the study of theoretical issues, legal analysis and assessment of practical application of the Criminal Code, the author proposes a system of solutions to improve the Criminal Code and enhance the effectiveness of applying the Criminal Code related to the principle of liability due to fault.
8. Thesis layout :
To achieve the purpose, tasks, research objects and scope of research, the Thesis is structured into 3 chapters. Specifically:
Chapter 1: General issues on the principle of liability due to fault of Vietnamese Criminal Law.
Chapter 2 : The manifestation of the principle of liability due to fault in the 1999 Vietnamese Penal Code.
Chapter 3 : Trial practice and the completion of the 1999 Vietnamese Penal Code to ensure the principle of liability due to fault of the Criminal Law.
Chapter 1
GENERAL ISSUES OF PRINCIPLE
LIABILITY FOR ERRORS OF VIETNAMESE CRIMINAL LAW
1.1. Some theoretical issues on criminal errors.
1.1.1. The nature and concept of criminal fault .
1.1.1.1. The nature of criminal offenses .
In the composition of a crime, fault is a mandatory sign and belongs to the subjective aspect of the crime, so fault is the basis for prosecuting criminal liability. If a socially dangerous act is committed, causing damage or threatening to cause significant damage to society protected by the Criminal Law but there is no fault, it is not considered a crime.
Fin
What is a mistake ? When is a socially dangerous act considered to be a crime ?
Can a person commit, has caused damage or threatens to cause significant damage to social relations protected by the Criminal Law be considered at fault ?, and why is the person considered at fault when committing such a socially dangerous act subject to criminal liability? Answering these questions is also clarifying the nature of fault in the Criminal Law.
When researching to come up with a general concept of criminal offenses , in the world
There are many different schools of thought and ethical viewpoints :
“ Beling (a German scholar) considered fault as the subjective aspect of the behavior, not an element of the crime, because he believed that the crime was only an objective characteristic of the behavior prescribed in the law, so it could not include the subjective aspect. According to him, fault is the psychological attitude of the subject towards the crime; fault is not a sign of the crime but an independent sign of the crime, from which Beling believed that fault is a necessary condition of criminal liability ” [48, p.33].
According to G.Ê sec, Professor, Doctor, Director of the Center for International Criminal Law of the Federal Republic of Germany, representing the democratic school in science
Bourgeois criminal law states that, “ fault is not the blame of the formation of the will but the error of the will aimed at performing an illegal act. The psychological aspect of fault is the content of the psychological attitude of the subject towards the act in the form of intention or negligence ” [48, p.33].
“Ph.Novakovski - a representative of the subjective theory of crime, believes that fault is the core of crime and punishment is not based on the performance of an act corresponding to the crime but on the basis of the subject's inner tendency towards the object protected by the Criminal Law. Explaining the nature of fault, he believes that fault is an element in the subject's psychological activity. Fault is the basis for blaming the offender's behavior because the offender has not carefully considered specific situations, has not paid the necessary attention to not perform an illegal act corresponding to a crime. The offender has performed an act that he is not allowed to do or has not performed something that he must do. Ph.Novakovski concludes: fault is a bad habit of forming will, showing that the subject does not have the right attitude towards the values protected by the Criminal Law. The subject has reacted to the requirements of the law in a way that is not in accordance with the requirements of the law, and has not chosen the necessary behavior according to the requirements of the law" [48, p.34].
Jurists who follow the objective theory of crime consider fault as a sign of crime, a manifestation of the subjective side of crime. T. Riler (Austrian), a representative of this theory, believes that "fault is the psychological attitude of the subject towards illegal behavior, so fault is the subjective side of illegal behavior".
According to T.Riler, errors are characterized by the following three signs [48, p.34]:
a/ Biological signs : The condition for being at fault is that the subject of the illegal act belongs to the group of people who, according to the provisions of law, can be prosecuted for criminal responsibility, that is, must be of a certain age and must be psychologically perfect. In other words, the condition for being at fault is having criminal responsibility.
b/ Psychological signs of the fault : The content of the fault is the internal psychological attitude of the subject, the subject - the person with criminal liability capacity must be conscious when performing the act, the subject is aware of the illegality of his/her act, then it is called intentional fault; when the act is the result of carelessness, then it is called unintentional fault.
c/ Normative signs of error : T.Riler believes that determining the psychological attitude of the subject towards the behavior in the form of intention or unintentional is not enough to conclude whether the person is at fault or not. To determine the error, it is necessary to evaluate the psychological attitude of the subject from the perspective of whether the behavior performed by that person is legal or not, on that basis, it is possible to conclude the blame for the formation of will.
According to the theological concept of fault, in German Criminal Law science since the 70s of the 17th century, the person who committed a premeditated crime must be responsible for his crime (Pufendorf). According to the famous Italian jurist Tr. Beccaria, the criminal law viewpoint related to a certain extent to the methodological basis of fault is: The issue of criminal responsibility and punishment cannot be linked to the concept of moral fault and the only and true measure of crime cannot be damage. Punishment should be applied only when there is absolute necessity, not responsibility for fault [9, pp. 419, 420].
According to the idealist-subjective philosophical viewpoint of the German philosopher Kant I, freedom of will is that in all the actions of the subject, it is the law; criminal accusation is a form of moral responsibility, the basis of which is to consider the subject as the free cause of an action performed [9, pp.419, 420].
According to Hegel's objective idealism: The presence of reason and will is the general condition of accusation; the error lies in the assertion that the subject is a thinking person who has perceived and desired...[9, pp.419, 420].



![Mobile Phone Usage in Hanoi Inner City Area
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- Test the relationship between demographic variables and consumer behavior for Mobile Marketing activities
The analysis method used is the Chi-square test (χ2), with statistical hypotheses H0 and H1 and significance level α = 0.05. In case the P index (p-value) or Sig. index in SPSS has a value less than or equal to the significance level α, the hypothesis H0 is rejected and vice versa. With this testing procedure, the study can evaluate the difference in behavioral trends between demographic groups.
CHAPTER 4
RESEARCH RESULTS
During two months, 1,100 survey questionnaires were distributed to mobile phone users in the inner city of Hanoi using various methods such as direct interviews, sending via email or using questionnaires designed on the Internet. At the end of the survey, after checking and eliminating erroneous questionnaires, the study collected 858 complete questionnaires, equivalent to a rate of about 78%. In addition, the research subjects of the thesis are only people who are using mobile phones, so people who do not use mobile phones are not within the scope of the thesis, therefore, the questionnaires with the option of not using mobile phones were excluded from the scope of analysis. The number of suitable survey questionnaires included in the statistical analysis was 835.
4.1 Demographic characteristics of the sample
The structure of the survey sample is divided and statistically analyzed according to criteria such as gender, age, occupation, education level and personal income. (Detailed statistical table in Appendix 6)
- Gender structure: Of the 835 completed questionnaires, 49.8% of respondents were male, equivalent to 416 people, and 50.2% were female, equivalent to 419 people. The survey results of the study are completely consistent with the gender ratio in the population structure of Vietnam in general and Hanoi in particular (Male/Female: 49/51).
- Age structure: 36.6% of respondents are <23 years old, equivalent to 306 people. People from 23-34 years old
accounting for the highest proportion: 44.8% equivalent to 374 people, people aged 35-45 and >45 are 70 and 85 people equivalent to 8.4% and 10.2% respectively. Looking at the results of this survey, we can see that the young people - youth account for a large proportion of the total number of people participating in the survey. Meanwhile, the middle-aged people including two age groups of 35 - 45 and >45 have a low rate of participation in the survey. This is completely consistent with the reality when Mobile Marketing is identified as a Marketing service aimed at young people (people under 35 years old).
- Structure by educational level: among 835 valid responses, 541 respondents had university degrees, accounting for the highest proportion of ~ 75%, 102 had secondary school degrees, ~ 13.1%, and 93 had post-graduate degrees, ~ 11.9%.
- Occupational structure: office workers and civil servants are the group with the highest rate of participation with 39.4%, followed by students with 36.6%. Self-employed people account for 12%, retired housewives are 7.8% and other occupational groups account for 4.2%. The survey results show that the student group has the same rate as the group aged <23 at 36.6%. This shows the accuracy of the survey data. In addition, the survey results distributed by occupational criteria have a rate almost similar to the sample division rate in chapter 3. Therefore, it can be concluded that the survey data is suitable for use in analysis activities.
- Income structure: the group with income from 3 to 5 million has the highest rate with 39% of the total number of respondents. This is consistent with the income structure of Hanoi people and corresponds to the average income of the group of civil servants and office workers. Those
People with no income account for 23%, income under 3 million VND accounts for 13% and income over 5 million VND accounts for 25%.
4.2 Mobile phone usage in Hanoi inner city area
According to the survey results, most respondents said they had used the phone for more than 1 year, specifically: 68.4% used mobile phones from 4 to 10 years, 23.2% used from 1 to 3 years, 7.8% used for more than 10 years. Those who used mobile phones for less than 1 year accounted for only a very small proportion of ~ 0.6%. (Table 4.1)
Table 4.1: Time spent using mobile phones
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Alid
<1 year
5
.6
.6
.6
1-3 years
194
23.2
23.2
23.8
4-10 years
571
68.4
68.4
92.2
>10 years
65
7.8
7.8
100.0
Total
835
100.0
100.0
The survey indexes on the time of using mobile phones of consumers in the inner city of Hanoi are very impressive for a developing country like Vietnam and also prove that Vietnamese consumers have a lot of experience using this high-tech device. Moreover, with the majority of consumers surveyed having a relatively long time of use (4-10 years), it partly proves that mobile phones have become an important and essential item in peoples daily lives.
When asked about the mobile phone network they are using, 31% of respondents said they are using the network of Vietel company, 29% use the network of
of Mobifone company, 27% use Vinaphone companys network and 13% use networks of other providers such as E-VN telecom, S-fone, Beeline, Vietnammobile. (Figure 4.1).
Figure 4.1: Mobile phone network in use
Compared with the announced market share of mobile telecommunications service providers in Vietnam (Vietel: 36%, Mobifone: 29%, Vinaphone: 28%, the remaining networks: 7%), we see that the survey results do not have many differences. However, the statistics show that there is a difference in the market share of other networks because the Hanoi market is one of the two main markets of small networks, so their market share in this area will certainly be higher than that of the whole country.
According to a report by NielsenMobile (2009) [8], the number of prepaid mobile phone subscribers in Hanoi accounts for 95% of the total number of subscribers, however, the results of this survey show that the percentage of prepaid subscribers has decreased by more than 20%, only at 70.8%. On the contrary, the number of postpaid subscribers tends to increase from 5% in 2009 to 19.2%. Those who are simultaneously using both types of subscriptions account for 10%. (Table 4.2).
Table 4.2: Types of mobile phone subscribers
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Valid
Prepay
591
70.8
70.8
70.8
Pay later
160
19.2
19.2
89.9
Both of the above
84
10.1
10.1
100.0
Total
835
100.0
100.0
The above figures show the change in the psychology and consumption habits of Vietnamese consumers towards mobile telecommunications services, when the use of prepaid subscriptions and junk SIMs is replaced by the use of two types of subscriptions for different purposes and needs or switching to postpaid subscriptions to enjoy better customer care services.
In addition, the majority of respondents have an average spending level for mobile phone services from 100 to 300 thousand VND (406 ~ 48.6% of total respondents). The high spending level (> 500 thousand VND) is the spending level with the lowest number of people with only 8.4%, on the contrary, the low spending level (under 100 thousand VND) accounts for the second highest proportion among the groups of respondents with 25.4%. People with low spending levels mainly fall into the group of students and retirees/housewives - those who have little need to use or mainly use promotional SIM cards. (Table 4.3).
Table 4.3: Spending on mobile phone charges
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Valid
<100,000
212
25.4
25.4
25.4
100-300,000
406
48.6
48.6
74.0
300,000-500,000
147
17.6
17.6
91.6
>500,000
70
8.4
8.4
100.0
Total
835
100.0
100.0
The statistics in Table 4.3 are similar to the percentages in the NielsenMobile survey results (2009) with 73% of mobile phone users having medium spending levels and only 13% having high spending levels.
The survey results also showed that up to 31% ~ nearly one-third of respondents said they sent more than 10 SMS messages/day, meaning that on average they sent 1 SMS message for every working hour. Those with an average SMS message volume (from 3 to 10 messages/day) accounted for 51.1% and those with a low SMS message volume (less than 3 messages/day) accounted for 17%. (Table 4.4)
Table 4.4: Number of SMS messages sent per day
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Valid
<3 news
142
17.0
17.0
17.0
3-10 news
427
51.1
51.1
68.1
>10 news
266
31.9
31.9
100.0
Total
835
100.0
100.0
Similar to sending messages, those with an average message receiving rate (from 3-10 messages/day) accounted for the highest percentage of ~ 55%, followed by those with a high number of messages (over 10 messages/day) ~ 24% and those with a low number of messages received daily (under 3 messages/day) remained at the bottom with 21%. (Table 4.5)
Table 4.5: Number of SMS messages received per day
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Valid
<3 news
175
21.0
21.0
21.0
3-10 news
436
55.0
55.0
76.0
>10 news
197
24.0
24.0
100.0
Total
835
100.0
100.0
When comparing the data of the two result tables 4.4 and 4.5, we can see the reasonableness between the ratio of the number of messages sent and the number of messages received daily by the interview participants.
4.3 Current status of SMS advertising and Mobile Marketing
According to the interview results, in the 3 months from the time of the survey and before, 94% of respondents, equivalent to 785 people, said they received advertising messages, while only a very small percentage of 6% (only 50 people) did not receive advertising messages (Table 4.6).
Table 4.6: Percentage of people receiving advertising messages in the last 3 months
Frequency
Ratio (%)
Valid Percentage
Cumulative Percentage
Valid
Have
785
94.0
94.0
94.0
Are not
50
6.0
6.0
100.0
Total
835
100.0
100.0
The results of Table 4.6 show that consumers in the inner city of Hanoi are very familiar with advertising messages. This result is also the basis for assessing the knowledge, experience and understanding of the respondents in the interview. This is also one of the important factors determining the accuracy of the survey results.
In addition, most respondents said they had received promotional messages, but only 24% of them had ever taken the action of registering to receive promotional messages, while 76% of the remaining respondents did not register to receive promotional messages but still received promotional messages every day. This is the first sign indicating the weaknesses and shortcomings of lax management of this activity in Vietnam. (Table 4.7)
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