A New Portfolio Rebalancing Model with Transaction Costs by Meihua Wang, Cheng Li, Honggang Xue, Fengmin Xu

“…The constraint is constructed by considering both the transaction amount and transaction cost without any additional supply to the investment amount. …”
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The territorial dimension of transactions in the Canary Islands’ grape market by Dirk Godenau, Gloria Martín-Rodríguez, José Ignacio González-Gómez, José Juan Cáceres-Hernández

“… The territorial dimension of transactions between grape growers and wine producers in the Canary Islands’ grape market is examined. …”
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Analyzing the complex properties of bank account transaction network by Fang LYU, Xinlin ZHANG, Wei WANG, Junheng HUANG, Bailing WANG

Subjects: “…transaction network of bank accounts…”
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Failure recovery algorithm for LRT and transaction property analysis by Xiao-yong MEI, Chang-qin HUANG, Xiao-lin ZHENG, De-ren CHEN, Shi-xian LI

Subjects: “…composition transaction…”
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Research on the incentive mechanism of trusted transactions based on blockchain by ZHANG Guiyu, LIU Bowen, LIANG Xiaochen, ZHANG Xiaoyan, LYU Chengjin, YU Sijia, LI Shuo

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Distribution of transaction costs in the investment and construction sector of the Russian Federation by R. R. Kozakov, V. A. Koshcheev

Subjects: “…transaction costs…”
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Modelling and Transactional Analysis of an Omni-directional Mobile Manipulating Robot by Ding Xiaojun, Ma Qin, Zhao Tao, Liu Feng, Hu Xin

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Loan Transactions with Random Dates for the First and Last Periodic Instalments by María del Carmen Valls Martínez, Salvador Cruz Rambaud

“…Usually, loan transactions contracted in practice are nonrandom; that is to say, all amounts received (principal) and paid (period instalments) by the borrower are previously agreed with the lender, as well as their respective dates. …”
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Blockchain covert communication scheme based on the cover of normal transactions by Pengkun JIANG, Wenyin ZHANG, Jiuru WANG, Shanyun HUANG, Wanshui SONG

“…With the development of computer technology, the situation of modern network attack and defense is becoming increasingly severe, and the problem of secure transmission of secret information needs to be solved urgently.Covert communication technology embeds secret information into the carrier and transmits the information safely through the covert channel.However, the traditional covert channels face the challenges of data damaging, attack, detection and so on, which cannot meet the higher security requirements.As a public data platform, blockchain can embed secret information under the cover of a large number of transactions.With its tamper proof, anonymity, decentralization and other characteristics, blockchain can well solve the problems of traditional covert channels and achieve secure covert communication.However, the existing blockchain covert communication schemes are limited by low communication efficiency and poor security.How to improve safety and efficiency of covert communication is a research focus of blockchain covert communication.Motivated by this issue, a blockchain covert communication scheme based on the cover of normal transactions was proposed.The hash algorithm was used to build a transmission-free password table to embed secret information without changing any transaction data.Using the elliptic curve feature, transactions with hidden information can be quickly screened out from a large number of transactions, to extract secret information quickly.This scheme improves the security and efficiency of covert communication and has strong portability.Theoretical analysis shows that attackers cannot distinguish between ordinary transactions and special transactions.This scheme has high anti-detection and scalability.Besides, the experimental results of the bitcoin test network show the high efficiency of this scheme.…”
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TRANSACTION COSTS OF THE CONCESSION AGREEMENT AS FORMS OF STATE-PRIVATE PARTNERSHIP by A. Boldyrev

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Taxation of exports and imports of services: Automation of accounting and audit of transactions by Іryna Zhurakovska, Roman Sydorenko

“…Depending on the amount of transactions, controlled transactions are also subject to review. …”
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Understanding transactional sex among small scale fisherfolks in Ghana by Samuel K. K. Amponsah, Henry T. Apochie, Rachael Ackah

“… Despite its detrimental effects, transactional sex-for-fish is becoming more and more common in many African fishing states. …”
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Academic Activities Transaction Extraction Based on Deep Belief Network by Xiangqian Wang, Fang Huang, Wencong Wan, Chengyuan Zhang

“…Extracting information about academic activity transactions from unstructured documents is a key problem in the analysis of academic behaviors of researchers. …”
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Experience of instantaneous transaction coronary bypass surgery with carotid endarterectomy by B.M. Todurov, G.I. Kovtun, A.I. Matvijchuk, О.М. Postupalsky, А.О. Shpachuk, S.O. Sheludko, O.V. Revenko, O.A. Loskutov, M.A. Taranov

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Analytical Study of Usury in Cryptocurrency Transactions (Bitcoin Case Study) by Seyed Mohammad Hashem Pourmola, Jafar Zibaeenejad

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Span-of-control’s role at the intersection of transactional leadership and employee commitment by Tabea R. Mabasa, Chukuakadibia E. Eresia-eke

Subjects: “…transactional leadership…”
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The Integrative approach in transactional analysis as a theory and method in psychotherapy by Adam Bekier

Subjects: “…transactional analysis…”
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Analysis of Ethereum transactions during the prevention and investigation of criminal offenses by V. V. Nosov, O. V. Manzhai, Ye. V. Panchenko

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Analysis of the methods and trends of money laundering by import – export transactions by Ju. M. Beketnova

“…The article examines examples of typologies of export-import transactions, including “carousel” commodity schemes, highlights the indicators of this type of money laundering schemes. …”
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Analysis on anonymity and regulation of digital currency transactions based on game theory by Xian ZHANG, Jianming ZHU, Zhiyuan SUI, Shengzhi MING

“…By using technologies such as blockchain, digital currency, as a new type of monetary asset, has been promoting the development of digital economy.Digital currency trading platform plays an important role in the use of private digital currency by digital currency users.Existing digital currency trading platforms may expose users’ privacy and provide illegal elements with the conditions to participate in various abnormal trading behaviors such as“air dropping” events, extortion, fraud, etc.The strong anonymity protection of users by digital currency trading platforms also make it more difficult for regulatory authorities to supervise digital currency transactions.Therefore, the strength of the anonymity protection of users by digital currency trading platforms need to consider not only the privacy protection of users, but also meet the regulatory requirements.For this reason, based on the analysis of the relationship between the digital currency trading platforms and the supervisory departments, an evolutionary game model was established, the digital currency trading platform and the supervisory game model were defined and constructed, and the replication dynamic equation was solved and the balanced solution was obtained according to the income matrix between the digital currency trading platform and the supervisory department.By building a Jacobian matrix, the stability of the evolutionary system under different parameters was analyzed.Besides, the evolutionary stable selection and strategy of the digital currency trading platform and the regulatory authority under different conditions were also analyzed.With Matlab, different strategies of anonymity protection of the digital currency trading platform and different strategies of supervision strategy of the regulatory department were simulated to verify the accuracy of the game model.Based on the results of the simulations, some suggestions on the supervision of digital currency trading platforms are put forward, which provides a theoretical basis for the future supervision of digital currency trading platforms in China.…”
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