The question asks for the commonality among Duncan Black, Anthony Dowas, James Buchanan, and Kenneth Arrow. Analyzing their contributions reveals a shared connection to Public Choice Theory.
Based on the established contributions of Arrow, Buchanan, and Black, and the likely inclusion of Anthony Downs (as Dowas), the most fitting commonality is their advocacy and development of Public Choice Theory.
Therefore, the common link is their work related to Public Choice Theory in public administration and political science.
Match the following different level of the organization (List-l) with its functions of administration (List-II).
| List-1 Level of the organisation | List - II Functions of Administration |
| (a) Institutional level | (i) Performance of the technical activities- counselling clients, referral, teaching or provision of material resources |
| (b) Managerial level | (ii) Includes tasks directed towards procurement and allocation of resources, structural design, co-ordination and direction |
| (c) Technical level | (iii) Personify organizational goals, to give leadership to boards, staff and clients |
| List - 1 (Terms of Welfare Organisations) | List - II (Functions) |
| (a) Voluntary Organisation (VOS) | (i) Creations of government and serve as instruments of government policy |
| (b) Public Service Contracters (PSCs) | (ii) Represent their member, interests, have member accountable leadership, and are substantially self-reliant |
| (c) Peoples Organizations (POS) | (iii) Function as market oriented non profit business serving public purposes |
| (d) Non Governmental Organisations (NGO) | (iv) Pursue a social mission driven by a commitment to shared values |