Nakajima, Tadahiro - In: Research in World Economy 5 (2014) 2, pp. 23-30
This study tested for Granger causality among international market prices of coffee beans, import prices, retail prices … to the import price series. This indicates that Japan procures coffee beans at a price consistent with the international … prices. This demonstrates that instant coffee is the only substitute good for coffee beans and the price maker in the luxury …