Sauvik, You are comparing apples and oranges when you compare renaissance economic philosophers to Indian spiritual philosophers. Renunciation only applies to an individual (not to societies) on the path to moksha, not to those who are in pursuit of artha and kama. Subjectivism is defined as any theory which takes private experience to be the sole foundation of factual knowledge from which objective knowledge can be derived. By this definition most Indian schools are subjectivist because they are based on an individual's quest (sadhana) to obtain jnana, not mere belief. If you want to look at extant 'books or philosophy' on ancient Indian economic ideas, you may want to look at the Arthasastra by Chanakya, the Thirukural and so forth. Chanakya says that artha (sound economies) is the most important quality and discipline required for a Rajarshi, and that dharma & kama are both dependent on it. Chanakya writes on the economic duties of a king: "Hence the king shall be ever active in the management of the economy. The root of wealth is (economic) activity and lack of it (brings) material distress. In the absence of (fruitful economic) activity, both current prosperity and future growth will be destroyed. A king can achieve the desired objectives & abundance of riches by undertaking (productive) economic activity." For starters you may want to look at 'Ancient Indian Economic Thought : Relevance for Today/Ratan Lal Basu and Raj Kumar Sen'