1. Introduction
The rise of streaming media paves the way for streaming e-commerce, which leverages live streaming and short video platforms such as TikTok for online shopping [
1]. These platforms possess social attributes that foster user interaction. By December 2023, 1.053 billion people use streaming media, making up 96.4% of all Internet users [
2]. Consequently, streaming e-commerce represents and provides an innovative and unique e-commerce model that draws on and monetizes this user traffic [
3].
Short-video e-commerce (SVE) and live-streaming e-commerce (LSE), the two major modes of streaming e-commerce, have unique features that differentiate them from traditional e-commerce. LSE combines live streams with online shopping, increasing engagement and sales [
4]. This integration merges social media with the purchasing process, making the decision-making process social and immediate, such as LSE on TikTok [
5]. Conversely, SVE integrates product demonstrations within short video content [
6]. This approach combines visual media with products, providing convenient, personalized consumption experiences. Extant studies show that live streaming supports real-time interaction, promoting customer involvement [
7]. The adoption of live-streaming strategies leads to a substantial increase in the sales performance of online products [
8]. Similarly, SVE affects sales and increases the store’s dynamic score, including service quality and customer satisfaction [
9].
While streaming e-commerce significantly boosts online shopping, sales performance varies considerably across different streaming modes (e.g., live streaming mode vs. short video mode). Moreover, sales of various products under the same mode show significant variations, which could be attributed to differences in the choice of streaming media modes [
10] and product types [
11]. Live streaming emphasizes authenticity and has a longer duration, whereas short videos allow for content editing to highlight visual impact and can be replayed and shared repeatedly.
Live streaming and short videos have different presentation forms, offering distinct shopping experiences for consumers when selling various products. Different types of products entail distinct decision-making tasks. The alignment between streaming media modes and products affects consumers’ purchasing desires [
12]. When the product matches the streaming e-commerce mode, it better fulfills consumers’ cognitive needs and enhances the shopping experience. Conversely, suppose there is a mismatch between the streaming e-commerce modes and the products. In that case, consumers may need to expend additional effort to process information, reducing consumer satisfaction and negatively impacting purchasing behavior. Therefore, it is crucial to examine the interplay of streaming e-commerce mode and product type on sales performance [
13].
Research on streaming e-commerce primarily focuses on investigating consumer behavior, such as consumers’ motives for viewing live streams [
14] and factors influencing consumer purchasing [
15] and participation behaviors [
16]. Another research explores how different combinations of celebrities, content, consumers, and endorsed products affect audience evaluation [
12]. The distinct impacts of live streaming and short videos on consumers in the tourism [
17] and gaming industries are investigated [
18]. Different products have different attributes, and there are differences in consumers’ purchasing needs for different types of products. Nonetheless, the interplay of streaming e-commerce mode and product type on sales performance has not been examined empirically.
This paper explores how the interaction between streaming e-commerce modes and product types affects sales performance. The e-commerce section of the TikTok platform offers a wide variety of products with varying prices for the same items. The price of a product is a key factor influencing consumer purchasing decisions, and higher prices potentially reduce sales quantity. Therefore, we examine how various products’ prices influence the interaction of streaming e-commerce mode and product type. Considering the alignment between information forms of streaming media modes and consumers’ cognitive structures, we adopt the cognitive fit theory to explain why certain streaming e-commerce modes are more suitable for different types of products. The primary research question is how to fit streaming e-commerce modes with product types to enhance sales. We gathered sales data from 282 products sold in 564 live streams and short videos from TikTok to examine the research model. Our findings enrich the theories of the relevant research field and offer valuable guidance for streaming e-commerce stakeholders regarding streaming media strategies.
4. Methodology
4.1. Data Collection
We adopted TikTok as the research sample source. It is a well-known short video social platform with a large user base, with monthly active users reaching 1.58 billion [
38]. TikTok provides SVE and LSE, covering a wide range of product categories. The sample selection period is from 21 June 2023 to 28 August 2023. In our study, the sample consists of clothing, digital home appliances, beauty, daily necessities, and food. Digital home appliances and daily necessities (such as smartphones, cameras, and teacups) typically have standardized technical specifications (e.g., size, performance, brand) that allow consumers to assess and evaluate them based on product descriptions [
10]. In contrast, products like cosmetics, clothing, and food are highly reliant on sensory attributes, and consumers cannot evaluate their quality through objective information alone. Instead, consumers must rely on actual use or experience to make an informed judgment. Digital home appliances and daily necessities represent search products, while cosmetics, clothing, and food represent experience products. We selected those sample products that adopted both short video and live streaming modes for promotion. To ensure data quality, live streaming and short videos released at least 30 days before the data collection date were chosen. For the data collection, a total of 282 distinct products were selected from TikTok, with 104 search products and 178 experience products, each corresponding to data collected from both live streaming and short video modes. This resulted in a total of 564 pieces of product information, with each product represented once in both modes. Data items included product names, product prices, number of short videos or live streaming associated with the product, product sales quantity, product ratings, product commissions, and streamer’s fan counts. Product classification is detailed in
Table 1.
4.2. Variable Measurement
The dependent variable, sales data, is quantified by aggregating the total daily sales quantities resulting from live streaming and short video promotions of the products.
The independent variables are the types of products and the modes of streaming e-commerce. We encoded the variable of product type. Experience products are marked as 0, and search products are marked as 1. For the streaming e-commerce modes, we categorized them as live streaming (marked as 0) and short video (marked as 1).
The moderating variable in this study is product price, which is defined based on whether the price is above or below the median price for similar products. If a product’s price is at or below the median, it is considered low-priced and given a value of 0. Conversely, if the price is above the median, it is considered high-priced and given a value of 1.
The control variables are the number of fans streamers possess, the quantity of product-related videos, product ratings, and product commissions. The number of fans can reflect the seller’s influence on TikTok, and it can better illustrate the seller’s experience compared to the duration. Product ratings can reflect consumer satisfaction with the product, and the number of associated videos can reflect the product’s popularity. The commission rate can measure the sales revenue of a product. The number of fans is measured by the aggregated count of followers for streamers who engaged in live streaming or short video sales activities within the 30 days preceding the data collection date. The short video count is measured by the cumulative number of live streaming or short videos showcasing products on the TikTok e-commerce platform within a month. The variable of product rating is measured by the consumer review scores for the product. The product commission is measured by the percentage fee charged by the platform to the seller for each sale. The above factors are shown to affect online sales in streaming e-commerce [
39,
40]. The variables are described in
Table 2.
4.3. Descriptive Statistical Analysis
The descriptive statistical analysis of the variables is displayed in
Table 3. It reveals that the mean and standard deviation of the
Sales,
Fans, and
Videos variables have wide variations, indicating significant differences in the sample. The distribution of the other variables in the sample is relatively centralized, with no significant dispersion. Due to the substantial differences in the mean and extreme values of product sales quantity, fan counts, and the number of videos compared to the dependent variable data, this study applies natural logarithm transformations to these three variables to improve the robustness of the results. The correlation coefficients between the variables are given in
Table 4.
4.4. Regression Analysis
The following multiple linear regression models were constructed:
In Equations (1) and (2), Sales denotes the product sales quantity, and ProdType indicates the product type, where e-commerce products on the TikTok platform are categorized as experience products and search products (experience products = 0, search products = 1). ModeType denotes the streaming e-commerce modes (live streaming = 0, short videos = 1). LnFans, LnVideos, Score, and Commission are controls; ε is the random error term.
5. Results
The results of the multiple linear regression analysis are depicted in
Table 5. As shown in Model 1 of
Table 5,
LnFans,
LnVideos, and
Score have positive effects on
LnSales separately (
β4 = 0.080,
p > 0.1;
β5 = 0.833,
p < 0.01;
β6 = 0.480,
p > 0.1).
Commission is negatively correlated with
LnSales (
β7 = −1.984,
p < 0.01). The interaction of streaming e-commerce mode and product type significantly enhances product sales quantity (Model 3,
β = 1.389,
p < 0.01), confirming hypothesis H1.
ModeType influences
LnSales, indicating the main effect of SVE is significant (Model 2,
β = 0.596,
p < 0.01). In Model 3, there is a negative correlation between
ProdType and
LnSales (
β = −0.877,
p < 0.01), while
ModeType has no significant effect on
LnSales (
β = 0.063,
p > 0.1). This indicates that for search products, choosing SVE enhances product sales quantity, supporting hypothesis H1a. There is no significant difference in the main effect of product type on sales quantity in Model 2 (
β = −0.191,
p > 0.1), while it has a significant effect in Model 3 (
β = −0.877,
p < 0.01). This indicates that for experienced products, choosing LSE increases product sales, confirming hypothesis H1b. In Model 4, the coefficient of the product price variable (
β = 0.421,
p < 0.01), the second-order interaction term between product type and streaming e-commerce mode (
β = 1.708,
p < 0.01), and the third-order interaction term between product price, product type, and streaming e-commerce mode (
β = −1.563,
p < 0.01) are all significant. This indicates that the product price negatively moderates the impact of the interaction between streaming e-commerce mode and product type on sales quantity, supporting hypothesis H2. The results of the hypothesis are shown in
Table 6.
The findings of regression analysis do not specify the optimal streaming e-commerce mode for diverse product types across different price ranges. To address this, we conducted separate regression analyses for high and low-priced products. Fisher’s permutation test was employed to evaluate the significance of coefficient differences between the two product groups following separate regression analyses. A p-value below 0.1 indicates a statistically significant disparity in variable impact on sales between the two product groups.
The results from
Table 7 for Model 2 indicate that the modes of streaming e-commerce are influenced by variations in product prices. No statistically significant difference exists in how product type influences sales between low-priced and high-priced categories. The results show that using SVE enhances sales for low-priced products while choosing LSE boosts sales for high-priced products (
βlow = 1.498,
p < 0.01;
βhigh = −0.567,
p < 0.01). The findings from Model 3 indicate significant differences in the interaction coefficient between the types of products and the modes of streaming e-commerce between groups (
β = 1.668,
p < 0.01 in the low-priced group). Conversely, for the higher-priced group, the interaction coefficient of product type and streaming e-commerce mode is not statistically significant (β = 0.365,
p > 0.1). This suggests that the interaction effect of product type and streaming e-commerce mode does not significantly impact sales of high-priced products.
The dependent variable was log-transformed and subjected to linear regression analysis. Considering that the dependent variable, product sales, consists of non-negative integer data and may exhibit overdispersion, this study employed a negative binomial regression model to re-examine the research hypotheses, thereby demonstrating the robustness of the findings. The results of the robustness test are shown in
Table 8. All results are consistent with those of the main analyses described above.
6. Discussions
6.1. Discussion of the Findings
This research examines the interaction effect of streaming e-commerce modes and product types on sales, as well as the influence of prices on this interaction effect. We use sales data from the TikTok platform to validate the research model. The results show that matching the suitable streaming e-commerce mode with the product type significantly improves sales performance. The study finds that LSE performs better than SVE in selling experience products. This supports previous findings that live streaming is more effective in convincing online users to purchase experience products [
41]. When purchasing experience products, consumers rely on personal preferences and subjective feelings, requiring more detailed information to evaluate the product’s experiential attributes. Live streaming provides consumers with an immersive experience, allowing them to intuitively understand experience products more effectively than short videos.
The results indicate that SVE is more effective than LSE in increasing sales for search products, suggesting that consumers value product quality information when purchasing search products. SVE displays the key features of a product in a short amount of time, offering significant convenience [
17]. The presentation form of short videos is more fitted with consumers’ decision-making process when buying search products, and it also lowers consumers’ search costs. These findings explain how different streaming e-commerce modes match various product types, which provides valuable insights into the matching mechanism.
In addition, the product price influences the interaction of streaming e-commerce mode and product type on product sales. Specifically, for low-priced products, this relationship remained valid. However, for higher-priced products, the interaction effect disappears. High-priced products typically involve greater perceived risk and higher price sensitivity. Consumers may need to exert more cognitive effort and rely on more reliable information sources, such as brand reputation, reviews, and expert opinions, rather than solely relying on the appeal and engagement provided by live streaming or short videos.
6.2. Theoretical Implications
This study contributes to the existing literature on streaming e-commerce by confirming the interaction between streaming e-commerce mode and product type on sales. Previous research mainly explores how the attributes of streaming e-commerce impact consumer behavior [
42,
43]. However, the impact of the modes of streaming e-commerce on sales has not been explored. Hence, this study offers a new insight into the modes of streaming e-commerce.
Second, based on cognitive fit theory, we examine how streaming e-commerce modes and product types affect sales. Regarding search products, it’s easy to describe them by their attributes. For experiential products, it is more challenging to obtain information through search compared to directly experiencing or visualizing the product itself [
29]. Real-time interactive scenarios are more convincing for consumers when purchasing products [
44]. This aligns with how consumers decide to purchase experience products and encourages their buying behavior. SVE fits well with how consumers decide to buy search products, reducing the time spent searching for desired products and meeting consumers’ information needs during the decision-making process for purchasing search products. Therefore, this study provides a theoretical foundation for exploring streaming e-commerce.
Third, we examine how product prices affect the different combinations of streaming e-commerce modes and product types on product sales. The research indicates that lower product prices make SVE more effective in encouraging consumers to buy search products. LSE is more suitable for promoting purchases of experience products. However, this matching effect becomes weaker as product prices go up. Thus, our study emphasizes the important role of product price in streaming e-commerce.
6.3. Practical Implications
The findings offer insights to help companies develop effective streaming e-commerce strategies. For search products, SVE should highlight product information to facilitate consumer decision-making and provide clearer product descriptions, such as price, performance, and quality. Conversely, for experience products, LSE should focus on displaying the product’s use and experiential effects. Streamers build trust through interaction and can share personal experiences to enhance the perceived value of the product.
Furthermore, e-commerce stakeholders should tailor their strategies based on product prices, using live streaming for high-priced products and short videos for low-priced products. Enterprises should utilize short videos to emphasize the cost-effectiveness of their products and attract consumers. Additionally, e-commerce stakeholders should develop high-quality live-streaming content to enhance consumers’ perception of the value of high-priced items. This approach can reduce operating costs and increase sales.
Finally, the research findings contribute to optimizing the design and functionality of e-commerce platforms. Streaming e-commerce platform operators should ensure that the interface design meets the shopping needs of consumers. For search products, the focus should be on providing comprehensive product information and enhancing search convenience. For experience products, interface design should prioritize enhancing visual appeal and user experience to meet consumer preferences and needs. This will reduce operating costs and boost sales.
6.4. Limitations and Future Research
This paper explores how the combined influence of streaming e-commerce and product type affects sales. Product classifications may extend beyond this classification method, with products often having multiple attributes at the same time. Future research could explore more nuanced classifications of products. This would examine how different product attributes interact with various streaming e-commerce modes. Second, we only explore the moderating impact of the product price on the interaction effect of streaming e-commerce mode and product type. Other factors, such as brand familiarity and the language characteristics of streamers, may also impact product sales. These can be further studied in the future.