their contact information In the following chart, you can see that as annual income increases, the frequency of changing contact information also increases, from 23% for the lowest group, to 48%, and then 63%.(investigated in Japan, 2013) The higher annual income, the more often people change their contact information. Next time, we will focus on the details by income about people who replied they are managing business cards. See you soon!! Correlation between business cards management and income.
manage business cards In the following chart, the blue part shows the what percent of people do not manage their business cards at all, the red shows the percent of people managing it in traditional ways, and the green shows the percentage of people using IT to manage it. This increases significantly as income increases.(investigated in Japan, 2013) Following the previous entry, I want to introduce the stats about correlation between business cards management and income.