Media, healthcare marketing, PR and sports and entertainment offerings led growth.
Nationalism and protectionism are a worry, he told Campaign, hinting at a repositioning of investment in the world's second-largest economy.
Michael Roth told a Spikes Asia crowd that diversity and inclusion are business imperatives that have played a big part in Interpublic Group's recent turnaround.
Group CEO Michael Roth cites importance of agency brands to the company's results.
Shares climb, although performance expected to moderate in 2019.
Halle Berry, Raja Rajamannar and Michael Roth in discussion on new ways to connect with fans
Top news, insights and analysis every weekday
Sign up for Campaign Bulletins