Immediatelytheproletariathasconqueredpoliticalpowersuchameasuredictatedinthepublicinterestswillbejustaseasytocarryoutasotherexpropriationsandbilletingsarebytheexistingstate。
However，ourProudhonistisnotsatisfiedwithhispreviousachievementsinthehousingquestion。Hemustraisethequestionfromthelevelgroundintothesphereofthehighersocialisminorderthatitmayprovetherealsoanessential\"fractionalpartofthesocialquestion\"：
\"Letusnowassumethattheproductivityofcapitalisreallytakenbythehorns，asitmustbesoonerorlater，forinstancebyatransitionallawwhichfixestheinterestonallcapitalsatonepercent，butmarkyou，withthetendencytomakeeventhisrateofinterestapproximatemoreandmoretothezeropointsothatfinallynothingmorewouldbepaidthanthelabournecessarytoturnoverthecapital。Likeallotherproducts，housesanddwellingsarenaturallyalsoincludedwithintheframeworkofthislaw……Theownerhimselfwouldbethefirstonetoagreetoasalebecauseotherwisehishousewouldremainunusedandthecapitalinvestedinitwouldbesimplyuseless。\"ThispassagecontainsoneofthechiefarticlesoffaithoftheProudhonistcatechismandoffersastrikingexampleoftheconfusionprevailinginit。
The\"productivityofcapital\"isanabsurditythatProudhonismtakesoveruncriticallyfromthebourgeoiseconomists。Thebourgeoiseconomists，itistrue，alsobeginwiththestatementthatlabouristhesourceofallwealthandthemeasureofvalueofallcommodities;buttheyalsohavetoexplainhowitcomesaboutthatthecapitalistwhoadvancescapitalforanindustrialorhandicraftbusinessreceivesbackattheendofitnotonlythecapitalwhichheadvanced，butalsoaprofitoverandaboveit。Inconsequencetheyarecompelledtoentanglethemselvesinallsortsofcontradictionsandalsotoascribetocapitalacertainproductivity。
NothingprovesmoreclearlyhowdeeplyProudhonremainsentangledinthebourgeoisideologythanthefactthathehastakenoverthisphraseabouttheproductivityofcapital。Wehavealreadyseenatthebeginningthattheso-called\"productivityofcapital\"isnothingbutthequalityattachedtoit（underpresent-daysocialrelations，withoutwhichitwouldnotbecapitalatall）ofbeingabletoappropriatetheunpaidlabourofwageworkers。