PARIS : Bankruptcies in France's tech start-up sector are increasing, according to a survey published on Tuesday whose findings could undermine President Emmanuel Macron's image of Paris as a leading European tech hub and key driver of the French economy. During his first term in office, Macron touted Station F in Paris as an example of France's burgeoning tech start-up industry, and France's global AI summit in February attracted 110 billion euros of investment pledges. However, industry