Jack Dorsey fashion design. As the service began to grow in popularity, Dorsey chose the improvement of uptime as top priority, even over creating revenue – which, as of 2008, Twitter was not designed to earn. Dorsey described the commercial use of Twitter and its API as two things that could lead to paid features. He describes his three guiding principles, which he says are shared by the company, as simplicity, constraint and craftsmanship. On October 16, 2008, Williams took over the role of CEO, while Dorsey became chairman of the board. On March 28, 2011, Dorsey returned to Twitter as Executive
Cool Biz campaign In July 2009, the Cabinet Office announced results of a new questionnaire survey, which indicates that 91.8% of respondents knew about the Cool Biz campaign, and 57% of them put the campaign into practice. While Cool Biz spread energy savings to all businesses, the necktie business suffered. They claimed that their summer sales dropped drastically (an estimated 36%), and asked the Environment Minister to end the campaign. On the other hand, the Ministry of Economy, Trade and Industry (METI) analyzed that the Cool Biz campaign increases replacement demand for clothing and generates positive macroeconomic effects on the GDP by 18