00810nam0 2200265 450 00002506120090325165808.00262192659026269157420090325d1990----km-y0itay50------baengUSy-------001yyUnderstanding unemploymentLawrence H. SummersCambridge (Mass.)LondonThe MIT pressc1990XXIV, 360 p.23 cmUnderstanding unemployment44313Disoccupazione331.13720Economia del lavoro. DisoccupazioneSummers,Lawrence H.88970ITUNIPARTHENOPE20090325RICAUNIMARC000025061023/1726700NAVA2Understanding unemployment44313UNIPARTHENOPE