Revenue recognition (@ income recognition) of financial products of Malaysian Islamic banks is based on the 'Effective Profit Rate Method' (especially for products with fixed rate such as Al Ijarah Thumma Al Bay @ lease). This method is an adoption of the well known 'Effective Interest Rate Method', where the word 'interest' is replaced with 'profit'. Do you think the method is a fair technique to the customer of IFIs? If the customer would like to make a prepayment (full settlement before the end of contract period), would the method resulted in a 'kind' of punishment to the customer for early settlement?