For the purpose of analyzing the interests, needs, and justifications for the new “post express nonstop” service implementation, research was conducted which encompassed the creation of the corresponding questionnaire, collecting of answers from respondents, and their analysis. The formed questionnaire consists of three parts:
The following hypotheses to be investigated may be classified into seven groups. The first group examines if there is a statistically significant difference between users’ groups (natural persons/legal entities) regarding the following:
The third group of hypotheses examines if there is a statistically significant difference between respondents’ groups (natural persons/legal entities) regarding the attitude on the importance of parameter:
The fourth group consists of hypotheses that examine if there is a statistically significant connection between the type of respondents and the following:
The sixth group of hypotheses examines if there is a statistically significant difference between respondents’ groups (defined based on interest in “post express nonstop” service) regarding the following:
The seventh group of hypotheses analyzes a statistically significant difference between respondents’ groups (defined based on needs for “post express nonstop” service) regarding the following:
Selected Results of the Research
The number of respondents who participated in the survey is 181: 132 (72.9%) natural persons and 49 (27.1%) legal entities. Part of the group of respondents, related to legal entities, consisted mainly of participants in the relevant e-commerce chains. According to this fact, a significant number of legal entities (81.6%) use some of the existing post express services, while 18.4% are not users. Out of the total number of natural persons, 78.8% of them declared themselves as users of post-express services, while in 21.2%, this is not the case.
Table 1 shows the representation of the use of existing services by respondents who are users of some of the services of post express service.
On the basis of the obtained results, it can be concluded that next-day delivery service has dominant representation in both groups of respondents compared to the services that are being implemented on the same day when they are initiated (instant delivery and same-day delivery).
Table 2 shows the results of an analysis of the frequency of sending the postal items by respondents. The analysis included only respondents who declared themselves as users of the post-express service.
The results indicate that the largest percentage (78.8%) of users (natural persons) stated that they send express postal items at least once a year, while 3.8% of the users of the express delivery service declared that they do not use the service as senders. A total of 92.5% of legal entities, users of express delivery services, use this service as senders at least once a week.
Table 3 shows results that represent the frequency of the use of express delivery services by users as recipients.
By analyzing the results, it can be concluded that the largest percentage (77.9%) of natural persons (users of the express delivery service) stated that they receive the postal items at least once a year, while 1.9% of them do not use the service as recipients. More than half (57.5%) of legal entities, users of express delivery services, use the service as recipients at least once a week. There is a significant segment (35%) of those who use the services as recipients once a month. 2.5% of legal entities, users of the express delivery service, do not use the service as recipients.
Table 4 shows descriptive statistics on the number of sent and received items by natural persons and legal entities in 2018.
In 2018, the average natural person sent around three, and received about five, postal items, while the same indicators for legal entities amounted to about 855 and 123, respectively. It can be concluded that natural persons receive a higher number of items than they send, while for legal entities, the situation is reversed, and there are considerably more sent items.
It should be noted that there are natural persons who receive/send items and that there are legal entities that only send items. Mann–Whitney U Test results show that there is a statistically significant difference between the groups of respondents (natural persons/legal entities) in relation to the number of send-outs during the year (
Z = −9.307;
p < 0.001). The same test showed a statistically significant difference between groups of respondents (natural persons/legal entities) in relation to the number of postal items received during the year (
Z = −8.636;
p < 0.001). Based on the above results, H1 and H2 are adopted. The following table (
Table 5) shows the representation of the period of use of the service during the day by natural and legal persons. The results of the Chi-square test (
χ2 = 2.157;
p = 0.340) show that there is no statistically significant link between the type of user (natural persons/legal entities) and the parts of the day in which they use the service. In line with the above, H3 is discarded. Natural persons use the service more in the morning and in the afternoon, which may be influenced by their working hours. On the other hand, for legal entities, the use of the service is approximately uniformly represented in the considered parts of the day.
Table 6 shows the mean values of the significance of the parameters per group of respondents when deciding on the use of express delivery services. The relevance is defined by the appropriate scale of five levels (from 1—irrelevant to 5—very important).
If we look at both groups of respondents in parallel, the following parameters are especially important: price, security, speed, and time availability. The remaining two parameters are also important for respondents when deciding on the use of express delivery services. The respondents from the group legal entities gave something more prominent to the price parameter. The results of the Mann–Whitney U Test (
Z = −3.915;
p < 0.001) confirm that there is a statistically significant difference in the groups of respondents (natural and legal persons) in the attitude about the importance of the price parameter. This phenomenon can be explained by the commercial orientation of legal entities and their aspiration to reduce costs, that is, to make greater profits. The results of the same test show that there is no statistically significant difference between the groups of respondents (individuals and legal entities) in the attitude about the importance of all other parameters individually (selection of services (
Z = −0.292;
p = 0.770); safety (
Z = −1.578;
p = 0.115); speed (
Z = −0.008;
p = 0.994); time availability (
Z = −0.331;
p = 0.741); territorial and financial availability (
Z = −1.630;
p = 0.103). In accordance with the obtained results, H4 is adopted, while H5, H6, H7, H8, and H9 are rejected. The results presented in the following table (
Table 7) refer to the respondents’ need for sending/receiving of out-of-hours deliveries of the PE service in the previous year (from 7 p.m. to 8 a.m. on weekdays or weekends from 3 p.m. (Saturday) to 8 a.m. (Monday).
Results of the Chi-squared test (
χ2 = 46.829;
p < 0.001) show that there is a statistically significant link between the need for out-of-hours PE service and the type of respondents (natural persons/legal entities). In line with the above, H10 is adopted. A little less than half the number of natural persons (47.7%) did not have the need for such a service, compared to legal entities, where this indicator is only 22.4%. Of all the natural persons who had the need for this service in the previous year, the highest number are those who only needed it once, while most legal entities (40.8%) needed to use this service four times or more. One of the reasons for the dependence may be the fact that legal entities would be able to provide services of this type outside their working hours in order to reduce the negative impacts on the efficiency of doing their primary business activities. There are numerous examples that support this, and one of them can be a store that offers its products in retail and electronically. In line with orders via an e-commerce system, certain products must be sent to customers. The seller is limited by the working hours of the courier service (which largely corresponds to the retail time of the retailer) and is obliged to forward the products for transfer at a certain time interval, which can cause negative consequences for the retail business. Depending on the case, sending a product for transport can take place the next day, which can consequently cause a delay in the delivery of the product to a user’s address. These entities may find it more convenient for products sold through the e-commerce system to be forwarded for transport before or after the working time of their retail store. Moreover, products ordered before or during the weekend can be shipped in the shortest period, without waiting for the first day of the courier service.
Table 8 shows the results related to respondents’ interest (divided into four groups: natural persons, legal entities, PE users, and non-PE users) for the use of express delivery services (“post express nonstop”) outside PE service hours.
When the interest in the “post express nonstop” service is analyzed at the level of groups of natural persons and legal entities, it is concluded that, on this matter, a significant part of both of them has a positive attitude (64.4% and 73.5%, respectively). Based on the results of the Chi-squared test (χ2 = 0.950; p = 0.330), it can be concluded that there is no statistically significant link between the type of respondents (natural persons/legal entities) and the interest in the service. Based on these facts, H11 is rejected.
The results of the Chi-square test (
χ2 = 19.349;
p < 0.001) show that there is a statistically significant link between the type of respondents (PE service users/non-PE users) and interest in the “post express nonstop” service. On this basis, H12 is adopted. Namely, a significant percentage (75%) of PE service users is interested in the “post express nonstop” service, while respondents who do not use express delivery services are interested in a smaller, but still significant, measure (35.1%) for the analyzed service (
Table 9).
The results presented in the following table (
Table 10) relate to the link between the respondents’ need for the “post express nonstop” service and their interest in using it.
Results of the Chi-square test (χ2 = 57.060; p < 0.001) show that there is a statistically significant correlation between the need for the “post-express nonstop” service and the interest in the same service. Based on this, H13 is adopted. In essence, a large percentage of the respondents who had any need for service was interested in that service, while the majority of those who did not have a need for service was not interested in it.
Table 11 shows the results of the analysis of the respondents’ views on the “post express nonstop” service in relation to the views on the following alternatives: (a) importance of the parameter—time availability when deciding on the use of the PE service; (b) importance of the parameter—selection of services, when deciding on the use of the PE service; (c) readiness of the users to pay 20% more for such a service than for the existing PE services; (d) claims: lower price of the “post express nonstop” service in relation to the standard PE services would motivate potential users to use it. The relevance is defined by the appropriate scale of five levels (from 1—irrelevant to 5—very important). Readiness to pay more is also defined on a scale of five levels of value, where 1 corresponds to the phrase “completely not ready” and 5 is “completely ready”. Levels of agreement with a claim concerning lower prices and motivations for using the service are defined on a scale of the same structure, with the value 1 corresponding to the “I completely disagree” and 5 to “I completely agree”.
The results of Mann–Whitney U test (Z = −2.042; p = 0.041), confirm that there is a statistically significant difference in the groups of respondents (interested and not interested in the “post express nonstop” service) in the attitude about the importance of the parameter—time availability when making a decision about the use of the PE service (alternative a). Namely, respondents interested in the stated service find the parameter of time availability more important, than those who are not interested in the same service. The results of the Mann–Whitney U Test (Z = −2,167; p = 0.03), indicate a statistically significant difference in the same groups of respondents in the attitude about the importance of the parameter—a selection of services when deciding on the use of the PE service (alternative b). The respondents interested in this service value more the parameter of the choice of services than those who are not interested in it. Based on the results above, H14 and H15 are adopted.
The results of Mann–Whitney U Test (Z = −6.769; p < 0.001) show there is a statistically significant difference between the interested and the uninterested respondents for the analyzed service, and in their attitude about the willingness to pay 20% more for the existing ones PE services (alternative c). The respondents who are interested are also more willing to pay higher rates of service, compared to those who are not interested. The results of Mann–Whitney U Test (Z = −6.902; p < 0.001) show there is a statistically significant difference between the interested and the uninterested respondents for the service under consideration, in their view of the claim that a lower price of services can motivate potential users to use it (alternative d). The people who are interested in the service agree more with this claim; however, there is a considerable agreement by the non-interested ones. This means that this group of potential users can be influenced by a lower price mechanism in order to become interested in the service. Based on the above results, H16 and H17 are adopted.
The stated financial scenarios for the “post express nonstop” service (higher and lower service prices, respectively alternatives c and d) were further analyzed in relation to the needs of the respondents for the service in the previous year and the appropriate conclusions were drawn (
Table 12).
From the analysis of the results of the Kruskal–Wallis test, a statistically significant difference between the groups defined by the need for the “post express nonstop” service in the attitude toward the alternatives c—(χ2 = 23.559; p < 0.001) and d—(χ2 = 33.278; p < 0.001). Respondents who had the need for the analyzed service expressed greater readiness to pay more for it. Based on the above, it is concluded that H18 and H19 are adopted.
It is interesting to note that respondents who had a need to use the service once (group 2) were more willing to pay more than those who had the same need four times or more (group 4). The reason for this may be the fact that the fourth group is largely owned by legal entities, who are market-oriented and for whom cost-cutting, that is, the increase in profits is of great importance. Natural persons, who mostly make up the second group, when considering the financial aspect of the service, take into account that they were in need of the service only a few times (once) in the previous year, so paying for the service at a higher price would not pose a problem at such a frequency of use. Respondents who needed to use the service are more likely to agree with the claim that the lower price of services would further motivate them to use it. It is important to note here that those respondents who did not have the need for this service considerably agree with the indicated effect of motivation. This fact can be used to create a mechanism that will attract users.
Data processing also carried out logistic regression to determine how well a defined set of predictor variables predicts or explains the categorical dependent variable [
56]. A preliminary model with a dependent variable was established: Participants’ interest in the “post express nonstop” service; and independent variables: User group (natural persons / legal entities); The most frequently used PE service; Part of the day when the service is the most often used; Importance of the time availability parameter when deciding on the use of the express delivery service; Importance of the parameter selection of services when deciding on the use of the express delivery service; Need for “post express nonstop” service. The preliminary model, which includes the previously mentioned variables, has a greater predictive power than the zero model, and this difference is statistically significant (
χ2 = 69.343;
df = 10;
p < 0.001,
RN2 = 44.2%). The final model consists only of variables that have been statistically significant and accurately classify 78.5% of cases. The obtained model has a higher predictive power than the zero model and the difference is statistically significant (
χ2 = 65.554;
df = 4;
p < 0.001,
RN2 = 42.2%). The variables (predictors) included in the final model with corresponding characteristics (odds ratio, 95% confidence interval (
CI), and
p-value) are shown in
Table 13.
The results show that for those potential users who had the need for the “post express nonstop” service 4 times or more in the past year, there is a 20.101-fold chance to find themselves in a group of people interested in the same service compared to those who did not have any need for it.
Following are the potential users who had the need for the service once (17.263 times more chance to find themselves in the group of people interested in the service compared to those who did not need it); those who had the need for it two or three times during the year (14.062 times higher the chance to find themselves in a group of people interested in the service in relation to those who did not need it). On the other hand, every single increase in the importance of the parameter—the choice of services, with the potential user, shows 1.707 times more chance of being interested in the “post express nonstop” service.
The main aim of the research was to investigate the respondents’ habits and attitudes about the existing express delivery services, as well as their interest and need for a new service that was proposed in the paper. Market research is a necessary step in the chain of activities that precede the introduction of new or modification of existing services. The results obtained in this way represent a good basis for the formation of a strategy aimed at proposing a new service or modifying an existing one. When introducing a new express delivery service, the company management should take into account its sustainability in the market. This entails attracting a certain number of customers, that is, postal items, which will make a satisfactory profit. The results of the research can indicate a number of facts and corresponding changes in the habits and needs of society, which need to be addressed through the characteristics of the new service. Accordingly, it is possible to define the target group of users, the concept of the service, as well as activities that can contribute to its better acceptance by users.
In addition, in this paper, relevant research results, primarily related to the interest of certain groups of respondents in the new service, were used to obtain one of the input parameters (correction factor, Δ
c, in
Section 4.2.3) of the proposed modified Bass model for forecasting the number of postal items. Namely, within the statistical analysis, apart from the interest of all respondents (scenario I), by appropriately crossing the collected answers, the opinions on the interest of respondents who are users of the existing express parcel transfer services (scenario II) were singled out. In addition, the impact of the increase (scenario III) and decrease (scenario IV) of the price of the new service on the respondents’ interest in it was explored. By incorporating the impact of the aforementioned research results into the proposed modified Bass model, four different scenarios were obtained, which allows one to see a broader picture of acceptance of a new service in the future.