“…Most pioneering works were primarily focused on the economy of the United States and based on a competitive structure of the labor market. They concluded that the existence of minimum wage had a negative effect on youth employment (Hashimoto and Mincer, 1970;Welch, 1974;Brown et al, 1982;Hamermesh, 1985;Wellington, 1991;Neumark and Wascher, 1992;Deere et al, 1995;Currie and Fallick, 1996;Partridge and Partridge, 1998;Williams and Mills, 1998;Baker et al, 1999;Pereira, 2003;Yuen, 2003;Neumark et al, 2004). Assuming the existence of a monopsony structure, other studies have provided, in contrast, evidence for the neutral, or even positive, effects of minimum wage on youth employment (Wellington 1991;Card, 1992aand 1992b, Katz and Krueger 1992, Card and Krueger 1994, Machin and Manning 1994Card and Krueger, 1995;Manning and Machin, 1996;Dickens et al, 1998Dickens et al, , 1999Bhaskar & To, 1999;Lang and Kahn, 1999).…”