Nissan Motor Co Chief Executive Carlos Ghosn said on Wednesday he was not worried about the longer-term potential of the Chinese economy, characterizing the recent slowdown as a temporary correction. “I think this is a temporary slowdown,” Ghosn, who also heads Nissan’s French partner, Renault SA (RENA.PA), told Reuters at the Tokyo Motor Show when asked about the world’s second-biggest economy. “The economy in China has been growing so fast, from time to time it needs a period to retune.