[Solved] In monopolistic competition, free entry and free exit mean that in the long run firms in the industry make zero economic profit. Pornography: Explicit visual or written material intended to stimulate sexual excitement. Research Finding: The result or outcome of a research study, often contributing new knowledge or understanding to a particular field. Sexual Arousal: Sexual Arousal is a complex psychological and physiological state involving increased blood flow, heightened sensitivity, and preparation for sexual activity. Orgasmic Disorder: A sexual dysfunction characterized by difficulty experiencing orgasm despite adequate sexual stimulation.