Japanese insurance giant Nippon Life Insurance has formed an alliance with NTT Docomo that will lead to the major mobile phone carrier selling insurance policies at its stores in Japan. The carrier is seeking new revenue sources amid government pressure to lower its charges so as to give households more cash to spend in other areas of the economy, reported the Kyodo News Agency. The sale of insurance policies by Docomo is expected to begin next summer, and it may consider offering products by other insurers, too, allowing customers to compare policies at its shops.