Based on the following dataset, the attached graphs aim to test the potential influence of contributions' nationality on the number of articles they contributed to the Chinese Economic Monthly/Journal, in relation to the range of topics they addressed (number of distinct topics, on a scale ranging from 1 to 7) and the length of articles they contributed (measured by the number of pages), all periods included (1) and per period (2). We relied on R package "ggplot2" to build the scattered plots.