PARIS — Thousands of yellow vest protesters marched Saturday through Paris and other French cities for a ninth straight weekend to denounce President Emmanuel Macron’s economic policies, and repeated tensions broke out with police. Sporadic violence broke out during protests in Paris, Bourges, Bordeaux, Rouen, Marseille and Toulouse. Protesters walked peacefully through central Paris from the Finance Ministry in the east of the French capital to the Arc de Triomphe in the west. Scuffles between police and activists then broke out near the monument at the end of the march.