This paper is interesting but I don't think it really gets at the core of the issue. It associates the decline of young men in the workforce with so-called "leisure luxuries" such as video games. The paper even admits that, "For other groups - younger women, older men and older women - recreational computer is not a leisure luxury."

I would like to submit a complimentary hypothesis. While it may be true that young males are more interested in video games, video games are not necessarily the cause of the decline of younger males in the workforce. Perhaps games are simply a tool of escapism, utilized by a demoralized section of the population (young males). This could explain why young females are not influenced as drastically by the same leisure luxury. As with anything, the underlying reason behind young male decline in the work force could be a variety of things (e.g. males have more interest in games compared to young females or are more addiction prone to game than young females), but I believe that the case for escapism in young males in a society which is increasingly anti-male is a strong one to explain them seeking refuge in video games.