The random walk on the random connection model

We study the behavior of the random walk in a continuum independent long-range percolation model, in which two given vertices $x$ and $y$ are connected with probability that asymptotically behaves like $|x-y|^{-\alpha}$ with $\alpha>d$, where $d$ denotes the dimension of the underlying Euclidean space. More precisely, focus is on the random connection model in which the vertex set is given by the realization of a homogeneous Poisson point process. We show that this random graph exhibits the same properties as classical discrete long-range percolation models studied in [3] with regard to recurrence and transience of the random walk. The recurrence results are valid for every intensity of the Poisson point process while the transience results hold for large enough intensity. Moreover, we address a question which is related to a conjecture in [16] for this graph.Comment: New version of the manuscript with some extension

Max-linear models on infinte graphs generated by Bernoulli bond percolation

We extend previous work of max-linear models on finite directed acyclic graphs to infinite graphs, and investigate their relations to classical percolation theory. We formulate results for the oriented square lattice graph $\mathbb{Z}^2$ and nearest neighbor bond percolation. Focus is on the dependence introduced by this graph into the max-linear model. As a natural application we consider communication networks, in particular, the distribution of extreme opinions in social networks.Comment: 18 page

House Allocation with Existing Tenants: An Equivalence

In this paper we analyze two house allocation mechanisms each of which is designed to eliminate inefficiencies in real-life house allocation problems where there are both existing tenants and newcomers. The first mechanism chooses the unique core allocation of a "sister" exchange economy which is constructed by assigning each existing tenant her current house and randomly assigning each newcomer a vacant house. The second mechanism -top trading cycles mechanism- first chooses an ordering from a given distribution and next determines the final outcome as follows: Assign first agent her top choice, next agent her top choice among remaining houses and so on, until someone demands house of an existing tenant who is still in the line. At that point modify the queue by inserting her at the top and proceed. Similarly, insert any existing tenant who is not already served at the top of the queue once her house is demanded. Whenever a loop of existing tenants forms, assign each of them the house she demands and proceed. Our main result is that the core based mechanism is equivalent to an extreme case of the top trading cycles mechanism which orders newcomers before the existing tenants.

Technology Transfer in the Global Automotive Value Chain. Lessons from the Turkish Automotive Industry

The automotive industry is one of the main contributors to value added, employment and exports of the Turkish economy and it has undergone major changes since the mid-nineties. Most of the automotive manufacturers in Turkey are either joint ventures or wholly-owned affiliates of multinational companies. Literature on global value chains point to the possibility of technology transfer occurring through backward linkages from automotive manufacturers to their suppliers. We test for the existence and the importance of different types of knowledge and technology transfer mechanisms in the Turkish automotive industry. In addition, characteristics of local suppliers impacting on these transfers and their impact on firm performance are analyzed.Asurvey based on a detailed questionnaire was administered to production/R&D managers of the 158 automotive suppliersoperating in Turkey in 2010. Logistic and ordinal regressionsare used to examine the aforementioned issues. Findings confirm the existence of transfers from customers to their local suppliers on co-design and co-development activities, designing of production tools, development/improvement of quality control methods, cost reduction and design of materials. In addition, econometric analysis points to the fact that these transfers exert a positive effect on the performance of supplier firms.Automotive Industry, Knowledge and Technology Transfer, Multinational Companies (MNCs), Foreign Direct Investment (FDI), Innovation, Research and Development (R&D)

Foreign Direct Investment and Technology Spillovers in the Turkish Manufacturing Industry

Technology spillovers from foreign to domestic firms in emerging economies are considered to be the most important channel through which Foreign Direct Investment (FDI) influence the host economy. Empirical evidence about the existence, magnitude and direction of FDI-related spillovers in these countries is contradictory pointing to the necessity of conducting more econometric studies using firm-level data. We conduct an econometric analysis to assess the impact of FDI-related horizontal technology spillovers on output growth of domestic firms in the Turkish manufacturing industry over 2003-2006. When a broad definition of foreign ownership is adopted, our findings suggest that horizontal spillovers occur from foreign to local firms in the sector of activity. Export-oriented firms do not benefit from these spillovers in contrast to firms producing mainly for the domestic market. However, when foreign ownership is defined according to whether the minority or majority of capital is detained by the foreign partner, horizontal spillovers seem to originate from foreign firms with majority or full foreign ownership while no such effect is associated with minority-owned foreign firms.Foreign Direct Investment (FDI), multinational corporations, foreign ownership, productivity, technology spillovers, knowledge spillovers, horizontal spillovers, Turkey.

Türkiye İşçi Partisi ve Behice Boran

Taha Toros Arşivi, Dosya No: 236-Behice Boran. Not: Gazetenin "Konuk Yazar" köşesinde yayımlanmıştır

Behice Boran ve sınıf partisi gerçeği

Taha Toros Arşivi, Dosya No: 236-Behice Boran. Not: Gazetenin "Görüş" köşesinde yayımlanmıştır

Ben bir İstanbul yazarıyım!

Taha Toros Arşivi, Dosya No: 130-Oktay AkbalUnutma İstanbul projesi İstanbul Kalkınma Ajansı'nın 2016 yılı "Yenilikçi ve Yaratıcı İstanbul Mali Destek Programı" kapsamında desteklenmiştir. Proje No: TR10/16/YNY/010