construction plans are regarded as the basis of the economy in the society. any delays in the utilization of projects can cause to waste the investments and the loss of technical and economic justifications. in this paper, the barriers of on-time delivery in water projects will be scrutinized in mazandaran regional water company. so, the independent variables such as management obstacles, cultu...

by political choice, people achieve the official positions in political system. woman's political participation is one of the most important subjects that has been take attention of scientists and devoted much of sociopolitical topics. parliament provides suitable ground in order to woman's political participation. in this article, by using descriptive and analytical method, the barri...

the aim of this study was to explain and prioritize the barriers facing privatization of sports in iran. first, complementary data were gathered, coded and analyzed through the review of the theoretical bases, comparative studies and deep semi–structured interviews with experts in order to identify the barriers facing privatization of sports. after identifying the barriers, the obtained variabl...

In the paper “Entry Barriers in Politics, or: Why Politics, Like Natural Monopoly, Is Not Organised as an Ongoing Market-Process,” an analytical framework for dealing with processes of political competition is presented. The idea goes back to Tullock’s model of democracy as franchise-bidding for natural monopoly. To this, basic insights of New Institutional Economics and Austrian Ecomomics are ...

Consider a rectangular art gallery divided into n rectangular rooms, such that any two rooms sharing a wall in common have a door connecting them. How many guards need to be stationed in the gallery so as to protect all of the rooms in our gallery? Notice that if a guard is stationed at a door, he will be able to guard two rooms. Our main aim in this paper is to show that Èn/2 ̆ guards are alway...

We study a political economy model of entry barriers. Each period the policymaker determines whether to impose a high barrier to entry, and the special interest groups try to influence the policymaker’s decision. Entry is accompanied by creative destruction—when many new firms enter, old firms are more likely to be driven out of the market. Therefore the current incumbents (industry leaders) te...