Figure 2.
The graph plots article frequencies against years from 2004 to 2019 for four categories, synthesis, value in use, value proposition, and unclear. All lines start at low values and increase over time. Synthesis shows the strongest growth, rising steadily and reaching the highest level by 2019. Value in use and value proposition also increase with moderate fluctuations. The unclear category rises early, fluctuates, and remains lower than synthesis in later years. A table below lists exact values for each category across all years.Frequencies of articles on different levels of analytical comprehensiveness
Source: Authors’ own work