The following is a report from China Youth Daily on February 26, 2019

"At present, the recruitment after the Spring Festival has entered an intensive period. According to media reports, feedback from many large job fairs shows that this year's "recruitment shortage" of general or universal workers in manufacturing and service industries is more concerned than ever. Some business owners in Zhejiang said that this year's Recruitment "harvest" is not a little bit less, and even face the situation of "no harvest". On the one hand, there is a shortage of general workers or all-purpose workers in the manufacturing and service industries, with a large number of young people "escaping" from traditional factories and assembly lines; on the other hand, there is a growing number of young people in the takeout industry, with the average age of workers in the takeout industry ranging from 26 to 30, and nearly 70% of them under 35. According to the data, in 2015, the number of 'meituan takeout riders' was only 15000, but by the fourth quarter of 2018, the number of daily active riders was close to 600000, while the number of registered hummingbird riders under hungry has already exceeded 3 million. "

Q: Please analyze this phenomenon under the framework of "specific element model" and try to be as detailed as possible.