Input-Output analysis was invented by Wassily. W. Leontief in the year

The double criterion of welfare was propounded by

Kaldor - Hicks criterion states the 

Imperfect inforamation is 

.............. was the first economist to give a welfare criterion based on compensating principles.

Identify the issues of 'development planning' from the given list and choose the correct answer from the codes given below.

1. To increase the gross as well as percapita income with attaining full employment
2. Total structural changes in the society
3. Corrective planning