In my current country, when the Central Bank (BC Banco Central) raises the interest rate, federal treasury becomes very profitable. In addition, Agribusiness LC becomes very interesting too (remembering this latter investment is completely tax free). These are kept among the safest investments in my country. Federal treasury is secured even in the case of a failure or bankruptcy of the bank because the sender is the federal government. And if we choose a federal bank or a very solid, big and global bank, Agribusiness LC is very safe too. In fact, these two are my favorite investments. What about your countries?