भारत में बेरोजगारी को ऐतिहासिक रूप से किस संगठन द्वारा निर्धारित पद्धतियों के आधार पर मापा जाता रहा है?

According to the National Sample Survey Office (NSSO) classification, if a person works less than how many hours per week, he/she is considered underemployed?

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R): Assertion (A): Structural unemployment is a long-term, chronic form of unemployment. Reason (R): It arises from a fundamental mismatch between the skills that workers offer and the skills demanded by employers in the labour market. Choose the correct answer: