Under full substitutability of preferences, it has been shown that a competitive equilibrium exists in trading networks, and is equivalent (after a restriction to equilibrium trades) to (chain) stable outcomes. In this paper, we formulate the problem of finding an efficient outcome as a...

Under full substitutability of preferences, it has been shown that a competitive equilibrium exists in trading networks, and is equivalent (after a restriction to equilibrium trades) to (chain) stable outcomes. In this paper, we formulate the problem of finding an efficient outcome as a...

The Minimum Cost Network Flow Problem (MCNFP) includes a wide range of combinatorial optimization problems. Many applications exist for MCNFPs for instance supply chains, logistics, production planning, communications and transportations. Concave costs are, in many applications, more realistic...

This paper examines empirically the determinants of financial market development in Africa with an emphasis on banking systems and stock markets. The results show that income level, creditor rights protection, financial repression, and political risk are the main determinants of banking sector...

The most salient trend in monetary policy over the past two decades has been increasing reliance on money market operations, which reflects the belief that allowing market forces to allocate financial resources brings about increased economic efficiency and growth. However, small economies and...

This paper contains a proposal (referred to as the "modified reverse-charging" approach) to tax financial intermediation services under a VAT. At the heart of the proposal is the application of a reverse charge that shifts the collection of the VAT on deposit interest from depositors to banks,...

A review of the experience of five developing countries in reforming their financial systems illustrates the benefits and risks, and provides lessons on the factors which contribute to successful financial sector reforms. Financial sector reforms need to be supported by active monetary policy,...