"Demonetisation was a successful political coup which was heavily applauded by a majority of the Indian people. The government showed it was serious about corruption," Sorman told PTI in an interview.
Prime Minister Narendra Modi on November 8 last year had announced demonetisation of Rs 1,000 and Rs 500 notes in a major assault on black money, fake currency and corruption.
"Simultaneously, it has disrupted commercial transaction and slowed down the economy at large. Did it stop corruption? Of course not.
Post demonetisation, the BJP-led NDA government won a series of elections in local bodies as well as state assemblies, including Uttar Pradesh.
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The noted economist also pointed out that the government has not acted against the deep cause of corruption -- an excess of regulations which gives immense power to the bureaucrats at any level.
Sorman lauded Modi government for understanding that the "best way to promote growth is to let the Indian entrepreneurs, large firms and barefoot capitalists free to imagine and create".
"Also, Modi seems sometimes more interested in making political and symbolic gains than in helping the economy with a predictable course.
"Demonetisation, fiery political speeches, symbolic gestures (who needs giant and costly Shivaji monuments?) disrupt the confidence of potential investors, domestic or foreigners. They wonder what will happen next and get cold feet," Sorman said in the e-mailed interview.
Talking about India's economic growth, he said the country's growth rate is the highest since Independence and will remain high.