Vinyl resin production method

A method for producing a vinyl resin, comprising:

• suspension polymerizing of a vinyl compound in an aqueous medium using a dispersion stabilizer,
• wherein the dispersion stabilizer comprises:
• an aqueous emulsion (a) obtained by dispersing a polymer (A) having an ethylenically unsaturated monomer unit in an aqueous medium;
• a polyvinyl alcohol (B) with a degree of saponification of 65 mol % or more and less than 82 mol % and a viscosity-average degree of polymerization of 250 or more and less than 1,500;
• and
• a polyvinyl alcohol (C) with a degree of saponification of 82 mol % or more and less than 98 mol % and a viscosity-average degree of polymerization of 1,500 or more and less than 4,000;
• wherein the dispersion stabilizer comprises:
• 7 to 51 mass % of the polymer (A);
• 40 to 84 mass % of the polyvinyl alcohol (B);
• and 9 to 53 mass % of the polyvinyl alcohol (C), with respect to a total amount of the polymer (A), the polyvinyl alcohol (B), and the polyvinyl alcohol (C).