1. Introduction

Uncertainty and risk accompany most business relationships. The variability and complexity of these phenomena over time, as well as the need to react to them faster and faster, but also in different ways, make it necessary to look for new methods of financial management. Convergence of the principles and philosophy of management of conventional and Islamic investors are not always possible. Hence, the author made an attempt to describe the cooperation of public and private sector actors from different legal and religious orders, between which the selected canons of the economy, often perceived as separate, tend to permeate. In economics, heterodoxy is pertaining to an evolutionary approach to the economy. It analyses phenomena in many aspects, including social, historical and religious ones. It is not a part of the mainstream economics, as it often stands in opposition to it.