scholarly journals The role of transaction costs and risk aversion when selecting between one and two regimes for portfolio models

2018 ◽  
Vol 26 (6) ◽  
pp. 516-521 ◽  
Author(s):  
Emmanouil Platanakis ◽  
Athanasios Sakkas ◽  
Charles Sutcliffe
2005 ◽  
Vol 30 (4) ◽  
pp. 77-86 ◽  
Author(s):  
M S Sriram

In recent times, microfinance has emerged as a major innovation in the rural financial marketplace. Microfinance largely addresses the issue of access to financial services. In trying to understand the innovation of microfinance and how it has proved to be effective, the author looks at certain design features of microfinance. He first starts by identifying the need for financial service institutions which is basically to bridge the gap between the need for financial services across time, geographies, and risk profiles. In providing services that bridge this gap, formal institutions have limited access to authentic information both in terms of transaction history and expected behaviour and, therefore, resort to seeking excessive information thereby adding to the transaction costs. The innovation in microfinance has been largely to bridge this gap through a series of trustbased surrogates that take the transaction-related risks to the people who have the information — the community through measures of social collateral. In this paper, the author attempts to examine the trajectory of institutional intermediation in the rural areas, particularly with the poor and how it has evolved over a period of time. It identifies a systematic breach of trust as one of the major problems with the institutional interventions in the area of providing financial services to the poor and argues that microfinance uses trust as an effective mechanism to address one of the issues of imperfect information in financial transactions. The paper also distinguishes between the different models of microfinance and identifies which of these models use trust in a positivist frame and as a coercive mechanism. The specific objectives of the paper are to: Superimpose the role of trust in various types of exchanges and see how it impacts the effectiveness of repeated transactions. While greater access to information fosters trust and thus helps social networks to reduce transaction costs, there could be limits to which exchanges could solely depend on networks and trust. Look at the frontiers where mutual trust cannot work as a surrogate for lower appraisal costs. Use an example in the Canadian context and see how an entity that started on the basis of social networks and trust had to morph into using the techniques used by other formal nonneighbourhood institutions as it grew in size and went beyond a threshold. Using the Canadian example, the author argues that as the transactions get sophisticated, it is possible to achieve what informal networks have achieved through the creative use of information technology. While we find that the role of trust both in the positivist and the coercive frame does provide some interesting insights into how exchanges with the poor could be managed, there still could be breaches in the assumptions. This paper identifies the conditions under which the breaches could possibly happen and also speculates on the effect of such breaches.


2017 ◽  
Vol 9 (4) ◽  
pp. 303-323 ◽  
Author(s):  
Kei Kawakami

We analyze the welfare implications of information aggregation in a trading model where traders have both idiosyncratic endowment risk and asymmetric information about security payoffs. The optimal market size balances two forces: (i) the risk-sharing role of markets, which creates a positive externality amongst traders, against (ii) the information-aggregation role of prices, which leads to prices that are more correlated with security payoffs, thereby undermining the hedging function of markets. Our analysis indicates that a market with infinitely many traders may not be the right welfare benchmark in the presence of risk aversion and information aggregation. (JEL D43, D62, D82, D83)


2016 ◽  
pp. 5-23 ◽  
Author(s):  
V. Polterovich

T is proposed in the article to distinguish between two types of collaboration: a positive (not directed against third parties) and a negative one. I consider the hypothesis that in the process of social development, transaction costs ratio of the three main types of coordination - competition, power, and collaboration - is changing in favor of the latter. The mechanisms responsible for the implementation of this tendency are studied, and an attempt to explain its nonmonotonicity is made. It is shown that the strengthening role of positive collaboration is largely explained by cultural changes: the enhance of tolerance culture, the spread of cosmopolitanism and altruism, increasing planning horizon as well as trust radius. I demonstrate the importance of the institutions of positive collaboration in the process of catchingup development; it is shown that shock reforms could lead to the formation of negative collaboration mechanisms. For the further development of these ideas, a program of interdisciplinary researches is outlined.


2001 ◽  
Vol 24 (2) ◽  
pp. 127-136 ◽  
Author(s):  
B. Bouchard ◽  
Yu. M. Kabanov ◽  
N. Touzi

Author(s):  
Samira Nuhanovic-Ribic ◽  
Ermanno C. Tortia ◽  
Vladislav Valentinov

Over the last decades, agricultural co-operatives grew substantially in most developed and developing countries, often reaching dominant market positions. We inquire into the economic mechanism behind this growth, by elaborating on the relation between co-operative identity and co-operative benefits. We highlight the ability of agricultural co-operatives to co-ordinate large-scale production, to monitor work contributions and product quality, and to ensure economic independence of farmer members. Following the two principal streams in the economic literature, we distinguish between the conceptions of agricultural co-operatives as units of vertical integration and as firms characterized by common governance of collective entrepreneurial action and ability to reduce transaction costs and economic risk. We describe the financial and governance limitations of agricultural co-operatives while taking account of new co-operative models presenting institutional tools introduced to overcome these limitations. We conclude by suggesting directions for enhancing the role of co-operatives in agricultural and rural development.


Sign in / Sign up

Export Citation Format

Share Document