Figure 10
The figure consists of five panels examining the interaction strengths of product attributes related to product information and selling price and sales rank through line plots and heatmaps. Panel (a): The line plot shows the relationship between “Selling Price,” labeled on the horizontal axis, and “Probability,” labeled on the vertical axis. The horizontal axis ranges from 0 dollars to 120 dollars with an interval of 20 dollars, while the vertical axis spans from negative 0.15 to 0.15 with an interval of 0.05. The plot contains multiple thin gray lines, each representing the trend of individual samples or products, capturing the variability in how probability responds to price changes. Superimposed on these traces is a yellow dashed line labeled “average” in the legend at the top-right. This line represents the average probability trend across all traces. It starts from (0.015, 0), drops quickly around, and then gradually increases with a gentle trend, which ends at (1.222, 0.024). The thin lines are present above and below the dashed yellow line in the same pattern. Panel (b): The line plot illustrates the relationship between “Sales Rank,” labeled on the horizontal axis, and “Probability,” labeled on the vertical axis. The horizontal axis ranges from 2.0 to 12.0 with an interval of 2.0, while the vertical axis spans from negative 0.10 to 0.20 with an interval of 0.05. Multiple thin gray lines show individual trace lines for various samples, each depicting how probability changes with sales rank for that case. Overlaying these is a yellow dashed line labeled “average” at the top-right of the chart. This line captures the overall trend, which shows a gradual upward slope, indicating that higher sales rank values are associated with a higher probability on average. The average curve begins from (2.031, 0) and rises steadily, especially between ranks 4 and 10, which ends at (12.184, 0.044). The thin lines are present above and below the dashed yellow line in the same pattern. Panel (c): A horizontal bar chart showing sales rank interaction strengths with product features, topped by selling price and reliability. This horizontal bar chart, titled “Interaction Strength – Sales Rank,” visualizes how strongly Sales Rank interacts with other product features. The bars extend from left to right, and a rightward-pointing arrow indicates increasing interaction strength, which is labeled “More Interactive.” From top to bottom, the feature labels are “Selling Price underscore Sales Rank,” “Reliability underscore Sales Rank,” “Durability underscore Sales Rank,” “Product Information Mismatch underscore Sales Rank,” “Performance underscore Sales Rank,” “Primary Features underscore Sales Rank,” “Warranty underscore Sales Rank,” “Secondary Features underscore Sales Rank,” “Logistics Service Quality underscore Sales Rank,” and “After-sales Services underscore Sales Rank.” The longest bars at the top correspond to “Selling Price” and “Reliability,” indicating the strongest interactions with Sales Rank. “Durability,” “Product Information Mismatch,” and “Performance” follow with moderate interaction strength. Mid-range interactions are observed with “Secondary Features,” “Product Information Mismatch,” and “Selling Price.” The shortest bars, indicating the weakest interactions, belong to “After-sales Services,” “Primary Features,” and “Logistics Service Quality.” Panel (d): A heatmap of interaction values between sales rank and selling price, labeled with numeric values. This heatmap visualizes interaction strengths between “Sales Rank,” labeled on the horizontal axis, and “Selling Price,” labeled on the vertical axis. A color code using a blue-to-green gradient where darker blue indicates stronger positive interaction and lighter or green tones represent weaker or negative interaction. The horizontal axis includes Sales Rank values: 2.08, 4.93, 6.53, 8.14, 9.88, and 12.23. The vertical axis includes selling price values: 2, 5.32, 9.61, 17.51, 46.99, and 124.58, listed from bottom to top. Each cell contains a numeric interaction value: For 2: negative 0.027, negative 0.006, negative 0.001, 0.003, 0.001, 0.005. For 5.32: negative 0.045, negative 0.022, negative 0.016, negative 0.010, 0.000, 0.002. For 9.61: negative 0.045, negative 0.021, negative 0.015, negative 0.009, 0.000, 0.002. For 17.51: negative 0.024, negative 0.005, negative 0.000, 0.006, 0.016, 0.024. For 46.99: negative 0.012, 0.003, 0.009, 0.015, 0.023, 0.032. For 124.58: negative 0.002, 0.013, 0.017, 0.023, 0.032, 0.034. Panel (e): A heatmap showing interaction values between sales rank and reliability, with labeled cells and a blue-green gradient. This heatmap displays the interaction strengths between “Sales Rank,” labeled on the horizontal axis, and “Reliability,” labeled on the vertical axis. A color code using a blue-to-green gradient where darker blue indicates stronger positive interaction and lighter or green tones represent weaker or negative interaction. The horizontal axis shows Sales Rank values: 1.79, 4.76, 6.37, 7.95, 9.78, and 12.19. The vertical axis, from bottom to top, lists reliability values: 0.06, 0.10, 0.13, 0.18, 0.24, and 0.4. Each cell contains the following numeric interaction values: For 0.06: negative 0.043, negative 0.011, negative 0.007, negative 0.001, 0.004, 0.008. For 0.10: negative 0.044, negative 0.011, negative 0.007, negative 0.001, 0.004, 0.008. For 0.13: negative 0.044, negative 0.011, negative 0.007, negative 0.001, 0.004, 0.008. For 0.18: negative 0.037, negative 0.002, 0.002, 0.010, 0.016, 0.019. For 0.24: negative 0.038, negative 0.002, 0.002, 0.010, 0.016, 0.019. For 0.40: negative 0.021, 0.018, 0.022, 0.031, 0.036, 0.048. Note: All numerical data values are approximated.PDP, ICEs and interaction strength of selling price and sales rank. Source: Authors’ own creation