Suppose that the market supply​ elasticity, eta ​= 0.7​, the demand elasticity in other​ countries, epsilono​ = negative 0.8​, and that the United​ States' share of world rice​ output, theta ​= 10.0​%. Its residual supply elasticity ​'etar​ ' is ________ ​(round your answer to one decimal place​).