The dollar-peso rate rose to RD$35.50 yesterday despite investors? enthusiastic response to the Central Bank (BC) saving certificates. Interest rates are reported to have risen to as much as 50% as a consequence of the 36% interest available with the certificates. William Calderon, of the confederation of small- and medium-sized business (Codopyme), explained that current rates stand between 44% and 50% – dangerously close to the informal sector?s rate of 60% per annum. Small businesses are feeling the effects of high electricity costs and currency devaluation, and many have had their credit access removed, said Calderon. He called on the government to come to the aid of the small businesses with compensatory measures, ?because they are the backbone of the economy of all developed and developing countries.? Calderon went on to announce the formation of a national council to discuss ways of addressing the sector?s problems.