The survey conducted every quarter among 13,000 business leaders across 15 countries found that India was among the few nations that showed a significant increase in confidence towards their respective domestic economies.
In the April-June period, 90 percent business leaders surveyed by LinkedIn were expecting improvement in the nation's economy compared to 53 per cent in the January-March quarter this year.
"The Bharatiya Janata Partys (BJP) pro-business and pro- job creation agenda and its extremely strong showing in India's 2014 general election in May is a likely spark for that impressive increase in economic confidence," LinkedIn said.
Besides India, countries which also showed rise in optimism in their domestic economy were United Kingdom (73 per cent), Spain (58 per cent), Japan (46 per cent) and Italy (41 per cent). France and Brazil witnessed the maximum decline at 7 per cent each on the parameter.
Moreover, around 71 per cent of the business leaders in the country surveyed during April-June quarter this year have also expressed confidence in the global economy compared to 51 per cent in the first quarter (January-March) of 2014.
"While India had the most dramatic increase in confidence in the global economy, France, Canada and Brazil decreased the most, at 10 per cent, 5 per cent and 5 per cent, respectively," it added.
Increase in confidence for global economy were also seen at Netherlands (71 per cent), United Kingdom (68 per cent) and Spain (63 per cent) in the second quarter.
In terms of job expectations, 64 per cent of the business leaders surveyed in second quarter were expecting a increase in hiring compared to 60 per cent in previous quarter.
"Business leaders in twelve out of the fifteen countries show an increase in optimism about adding staff," the professional networking site said.