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spec: Because environmental subsidies are difficult to quantify , most definitions and estimates of energy subsidies incorporate only direct and indirect financial subsidies . Comparisons can also be made between the health benefits of an HIV intervention versus a non-HIV health intervention . The effects are difficult to quantify , but there are likely to be secondary effects of considerable local significance in terms of water resources , runoff , and erosion . While difficult to quantify , benefits to ( individuals ) society and ( business ) commerce due to openness and accountability should be considered . Samples taken in the band can greatly overestimate the overall fertility of a site . It is a lung disease that cannot be arrested , once it is started . Several of its recommendations to the president ( CNMA 1983 ) bear on the process of colonization and will be mentioned here . I think we've made it clear in the past that it is very important to us that Ecuador meet the conditions and carry out the economic policy changes that would enable it to enter into an agreement with the IMF , and that we would hope and expect that Ecuador would , in its very serious economic difficulties , work in a way - - work in a cooperative way with its creditors to address the substantial financing problems that it 's going to face going forward . I will not pretend to know how a newsgroup comes about , but whomever is correct , I am glad we found each other . Penetration into vaginal fluid is more difficult to quantify , and no such studies were presented here . " Perceptions are difficult to quantify , " he says . " Another common source of timing error , more difficult to quantify , is that arising from measurement overhead occurring on the computer making the measurement , as opposed to delays due to the network component being measured . Thus , in order to compensate the victim and recognize that a harm was committed , though it may be difficult to quantify , privacy statutes routinely include liquidated damage provisions .