Thevalueofthenewproductfurtherincludes:theequivalentofthevalueofthelabour—powertogetherwithasurplus—value。Thisissobecausethevalueofthelabour—power？soldforadefinitelengthoftime，sayaday，aweek，etc。？islessthanthevaluecreatedbyitsuseduringthattime。Buttheworkerhasreceivedpaymentfortheexchange—valueofhislabour—powerandbysodoinghasalienateditsuse—value？thisbeingthecaseineverysaleandpurchase。
Thefactthatthisparticularcommodity，labour—power，possessesthepeculiaruse—valueofsupplyinglabour，andthereforeofcreatingvalue，cannotaffectthegenerallawofcommodityproduction。If，therefore，themagnitudeofvalueadvancedinwagesisnotmerelyfoundagainintheproduct，butisfoundthereaugmentedbyasurplus—value，thisisnotbecausethesellerhasbeendefrauded，forhehasreallyreceivedthevalueofhiscommodity;itisduesolelytothefactthatthiscommodityhasbeenusedupbythebuyer。
Thelawofexchangerequiresequalityonlybetweentheexchange—valuesofthecommoditiesgiveninexchangeforoneanother。Fromtheveryoutsetitpre—supposesevenadifferencebetweentheiruse—valuesandithasnothingwhatevertodowiththeirconsumption，whichonlybeginsafterthedealisclosedandexecuted。
Thustheoriginalconversionofmoneyintocapitalisachievedinthemostexactaccordancewiththeeconomiclawsofcommodityproductionandwiththerightofpropertyderivedfromthem。Nevertheless，itsresultis:
（1）thattheproductbelongstothecapitalistandnottotheworker;