A molded article selected from the group consisting of (1) a sheet or a film, (2) a thermoformed article, (3) a stretched film, wherein the molded article is made of a polyester resin composition containing a polyester resin and a polyester-based plasticizer represented by the following formula (I): R1O—CO—R2—CO—[(OR3)mO—CO—R2—CO—]nOR1 (I), wherein R1 is an alkyl group having from 1 to 4 carbon atoms, R2 is an alkylene group having from 2 to 4 carbon atoms, R3 is an alkylene group having from 2 to 6 carbon atoms, m is the number of from 1 to 6, and n is the number of from 1 to 12, with proviso that all the R2's may be identical or different, and that all the R3's may be identical or different. The molded article of the present invention can be, for example, suitably used, such as a sheet or film for use in various industrial applications in foods, agriculture, and industries, a thermoformed article for use in various applications such as food containers, wrapping materials for daily sundries and household electric appliances, and industrial trays of industrial parts, and a stretched film for use in various applications such as wrapping materials for food wrappings, daily sundries, and household electric appliances, and various industrial films, respectively.