A resin comprising a structural unit derived from a compound represented by formula (I'): wherein, in formula (I'), R 1 and R 2 each independently represent an alkyl group having 1 to 6 carbon atoms which may have a halogen atom, a hydrogen atom or a halogen atom, Ar represents an aromatic hydrocarbon group having 6 to 24 carbon atoms which may have a substituent, and L 1 and L 2 each independently represent a group represented by any one of formula (X 1 -1) to formula (X 1 -8): wherein, in formula (X 1 -5) to formula (X 1 -8), L 11, L 13, L 15 and L 17 each independently represent an alkanediyl group having 1 to 6 carbon atoms, L 12, L 14, L 16 and L 18 each independently represent -O-, -CO-, -CO-O-, -O-CO- or -O-CO-O-, and * and ** are bonds, and ** represents a bond to an iodine atom, said resin further comprising a structural unit having an acid-labile group said structural unit having an acid-labile group comprising at least one selected from the group consisting of a structural unit represented by formula (a1-0), a structural unit represented by formula (a1-1) and a structural unit represented by formula (a1-2): wherein, in formula (a1-0), formula (a1-1) and formula (a1-2), L a 0 1, L a 1 and L a 2 each independently represent -O- or *-O-(CH 2) k1 -CO-O-, k1 represents an integer of 1 to 7, and * represents a bond to -CO-, R a 0 1, R a 4 and R a 5 each independently represent a hydrogen atom or a methyl group, R a 0 2, R a 0 3 and R a 0 4 each independently represent an alkyl group having 1 to 8 carbon atoms, an alicyclic hydrocarbon group having 3 to 18 carbon atoms, a cyclohexylmethyl group, an adamantylmethyl group, an adamantyldimethyl group or a norbornylethyl group, R a 6 and R a 7 each independently represent an alkyl group having 1 to 8 carbon atoms, an alicyclic hydrocarbon group having 3 to 18 carbon atoms, a cyclohexylmethyl group, an adamantylmethyl group, an adamantyldimethyl group or a norbornylethyl group, m1 represents an integer of 0 to 14, n1 represents an integer of 0 to 10, and n1' represents an integer of 0 to 3. R 1 and R 2 each independently represent an alkyl group having 1 to 6 carbon atoms which may have a halogen atom, a hydrogen atom or a halogen atom, Ar represents an aromatic hydrocarbon group having 6 to 24 carbon atoms which may have a substituent, and L 1 and L 2 each independently represent a group represented by any one of formula (X 1 -1) to formula (X 1 -8): wherein, in formula (X 1 -5) to formula (X 1 -8), L 11, L 13, L 15 and L 17 each independently represent an alkanediyl group having 1 to 6 carbon atoms, L 12, L 14, L 16 and L 18 each independently represent -O-, -CO-, -CO-O-, -O-CO- or -O-CO-O-, and * and ** are bonds, and ** represents a bond to an iodine atom, said resin further comprising a structural unit having an acid-labile group said structural unit having an acid-labile group comprising at least one selected from the group consisting of a structural unit represented by formula (a1-0), a structural unit represented by formula (a1-1) and a structural unit represented by formula (a1-2): wherein, in formula (a1-0), formula (a1-1) and formula (a1-2), L a 0 1, L a 1 and L a 2 each independently represent -O- or *-O-(CH 2) k1 -CO-O-, k1 represents an integer of 1 to 7, and * represents a bond to -CO-, R a 0 1, R a 4 and R a 5 each independently represent a hydrogen atom or a methyl group, R a 0 2, R a 0 3 and R a 0 4 each independently represent an alkyl group having 1 to 8 carbon atoms, an alicyclic hydrocarbon group having 3 to 18 carbon atoms, a cyclohexylmethyl group, an adamantylmethyl group, an adamantyldimethyl group or a norbornylethyl group, R a 6 and R a 7 each independently represent an alkyl group having 1 to 8 carbon atoms, an alicyclic hydrocarbon group having 3 to 18 carbon atoms, a cyclohexylmethyl group, an adamantylmethyl group, an adamantyldimethyl group or a norbornylethyl group, m1 represents an integer of 0 to 14, n1 represents an integer of 0 to 10, and n1' represents an integer of 0 to 3.