Although admired since years, why did the scepticism over the Japanese management style start since the last decade?

• A. Japanese companies have been moving out of their home markets since the last decade.
• B. Japanese banks have provided loans indiscriminately to the creditworthy as well as non-creditworthy people.
• C. Because Japanese markets have been going through a period of continuous recession since the last decade.
• D. The unlimited growth of the Japanese markets has come at the cost of the wester market.