نتایج جستجو برای: barter
تعداد نتایج: 419 فیلتر نتایج به سال:
The analysis of markets with indivisible goods and fixed exogenous prices has played an important role in economic models, especially in relation to wage rigidity and unemployment. This paper provides a novel mathematical programming based approach to study pure exchange economies where discrete amounts of commodities are exchanged at fixed prices. Barter processes, consisting in sequences of e...
A fair exchange of payments for goods and services is a barter where one of the parties cannot obtain the item desired without handing over the item he ooered. We introduce the concept of ripping digital coins to solve fairness problems in payment transactions. We demonstrate how to implement coin ripping for a recently proposed payment scheme 9, 8], giving a practical and transparent coin ripp...
The abrupt breakup of the USSR and socialist bloc in the early 1990s dealt a devastating blow to the island's economy. Almost overnight, beneficial aid and trade provided by the Council for Mutual Economic Assistance ground to a halt, including 80% of foreign trade previously conducted as barter and sales of 13 million tons of oil per year at preferential prices. When the Cuban economy bottomed...
In opportunistic networks, selfish nodes can exploit the services provided by other nodes by downloading messages that interest them, but refusing to store and distribute messages for the benefit of other nodes. We propose a mechanism to discourage selfish behavior based on the principles of barter. We develop a game-theoretic model in which we show that the proposed approach indeed stimulates ...
If property rights to consumption goods are insecure, the incentives to trade in a barter economy are reshaped. In a pure exchange economy, we examine the case where two contestable consumption goods are vital to two agents and initial endowments follow a binary distribution. In line with the existing literature, we examine in a two–stage game how the equilibrium security of claims to property ...
Do greater potential gains from trade enhance or erode contracting institutions? In an anonymous exchange environment traders can sign a contract, hence agreeing to interact with the assigned partner, or wait till the next match. Any contract can be endorsed (for a pay) by the enforcement agency, which then observes the interaction with a positive probability known to the traders and punishes t...
We explore the clearing problem in the barter exchange market. The problem, described in the terminology of graph theory, is to find a set of vertexdisjoint, length-restricted cycles that maximize the total weight in a weighted digraph. The problem has previously been shown to be NP-HARD. We advance the understanding of this problem by the following contributions. We prove three constant inappr...
This paper develops a model of intermediation in search environment with complete information and explains the optimal choice of the size of a middleman in an economy with an arbitrary finite number of goods. The model with linear storage cost predicts the existence of stationary equilibrium with the same number of shelves in every store and uniform distribution of agents over states. The effic...
In this paper, we describe the operation of barter trade exchanges by identifying key techniques used by trade brokers to stimulate trade and satisfy member needs, and present algorithms to automate some of these techniques. In particular, we develop algorithms that emulate the practice of trade brokers by matching buyers and sellers in such a way that trade volume is maximized while the balanc...
Erratum. Impact of Perturbed Pancreatic b-Cell Cholesterol Homeostasis on Adipose Tissue and Skeletal Muscle Metabolism. Diabetes 2016;65:3610–3620 DOI: 10.2337/db17-er02b Blake J. Cochran, Liming Hou, Anil Paul Chirackal Manavalan, Benjamin M. Moore, Fatiha Tabet, Afroza Sultana, Luisa Cuesta Torres, Shudi Tang, Sudichhya Shrestha, Praween Senanayake, Mili Patel, William J. Ryder, Andre Bonger...
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