In the poll that was conducted in October and November and drew responses from 4,561 Japanese firms, the ratio of companies aiming for business expansion grew two points from the previous year, according to the government-linked body.
More than 80% of 13 companies operating in Myanmar and 27 in Pakistan said they plan to boost their business in the respective countries in the next few years for such reasons as sales increase and high growth potential.
Firms operating in Myanmar included textile and construction companies, while those operating in Pakistan include transport machinery equipment makers.
Meanwhile, about 70% of the companies polled said they see rises in employees' wage levels as the biggest problem for their businesses, with 87.5% of firms doing business in Indonesia and 85.3% in China saying so.
On average, a double-digit pay scale increase from the previous year was logged in 2013 in Indonesia, Myanmar, Pakistan, Vietnam, India and Bangladesh, Jetro said.
A Jetro official said Japanese companies operating in China and other countries have introduced labour-saving machines to avoid a negative impact from wage increases.