The effects of non-trading on the illiquidity ratio

Using a simulation analysis we show that non-trading can cause an overstatement of the observed illiquidity ratio. Our paper shows how this overstatement can be eliminated with a very simple adjustment to the Amihud illiquidity ratio. We find that the adjustment improves the relationship between the illiquidity ratio and measures of illiquidity calculated from transaction data. Asset pricing tests show that without the adjustment, illiquidity premia estimates can be understated by more than 17% for NYSE securities and by more than 24% for NASDAQ securities.

A template for externalisation-internalisation decisions in virtual enterprises

Recognising the importance of alliance decision making in a virtual enterprise (VE), this paper proposes an analysis template to facilitate this process. The existing transaction-cost and resource-based theories in the literature are first reviewed, showing some deficiencies in both type of theories, and the potential of the resource based explanations. The paper then goes on to propose a resource-based analysis template, integrating both the motives of using certain business forms and the factors why different forms help achieve different objectives, Resource-combination effectiveness, management complexity and flexibility are identified as the three factors providing fundamental explanations of an organization's alliance making decision process. The template provides a comprehensive and generic approach for analysing alliance decisions.

Exploring demographic information in social media for product recommendation

In many e-commerce Web sites, product recommendation is essential to improve user experience and boost sales. Most existing product recommender systems rely on historical transaction records or Web-site-browsing history of consumers in order to accurately predict online users’ preferences for product recommendation. As such, they are constrained by limited information available on specific e-commerce Web sites. With the prolific use of social media platforms, it now becomes possible to extract product demographics from online product reviews and social networks built from microblogs. Moreover, users’ public profiles available on social media often reveal their demographic attributes such as age, gender, and education. In this paper, we propose to leverage the demographic information of both products and users extracted from social media for product recommendation. In specific, we frame recommendation as a learning to rank problem which takes as input the features derived from both product and user demographics. An ensemble method based on the gradient-boosting regression trees is extended to make it suitable for our recommendation task. We have conducted extensive experiments to obtain both quantitative and qualitative evaluation results. Moreover, we have also conducted a user study to gauge the performance of our proposed recommender system in a real-world deployment. All the results show that our system is more effective in generating recommendation results better matching users’ preferences than the competitive baselines.

Informational institutions in the agrifood sector:meta-information and meta-governance of environmental sustainability

In the agrifood sector, the explosive increase in information about environmental sustainability, often in uncoordinated information systems, has created a new form of ignorance ('meta-ignorance') that diminishes the effectiveness of information on decision-makers. Flows of information are governed by informal and formal social arrangements that we can collectively call Informational Institutions. In this paper, we have reviewed the recent literature on such institutions. From the perspectives of information theory and new institutional economics, current informational institutions are increasing the information entropy of communications concerning environmental sustainability and stakeholders' transaction costs of using relevant information. In our view this reduces the effectiveness of informational governance. Future research on informational governance should explicitly address these aspects.

Degree of vertical integration and its buffering effects on political uncertainty

The focus of this study is on the governance decisions in a concurrent channels context, in the case of uncertainty. The study examines how a firm chooses to deploy its sales force in times of uncertainty, and the subsequent performance outcome of those deployment choices. The theoretical framework is based on multiple theories of governance, including transaction cost analysis (TCA), agency theory, and institutional economics. Three uncertainty variables are investigated in this study. The first two are demand and competitive uncertainty which are considered to be industry-level market uncertainty forms. The third uncertainty, political uncertainty, is chosen as it is an important dimension of institutional environments, capturing non-economic circumstances such as regulations and political systemic issues. The study employs longitudinal secondary data from a Thai hotel chain, comprising monthly observations from January 2007 – December 2012. This hotel chain has its operations in 4 countries, Thailand, the Philippines, United Arab Emirates – Dubai, and Egypt, all of which experienced substantial demand, competitive, and political uncertainty during the study period. This makes them ideal contexts for this study. Two econometric models, both deploying Newey-West estimations, are employed to test 13 hypotheses. The first model considers the relationship between uncertainty and governance. The second model is a version of Newey-West, using an Instrumental Variables (IV) estimator and a Two-Stage Least Squares model (2SLS), to test the direct effect of uncertainty on performance and the moderating effect of governance on the relationship between uncertainty and performance. The observed relationship between uncertainty and governance observed follows a core prediction of TCA; that vertical integration is the preferred choice of governance when uncertainty rises. As for the subsequent performance outcomes, the results corroborate that uncertainty has a negative effect on performance. Importantly, the findings show that becoming more vertically integrated cannot help moderate the effect of demand and competitive uncertainty, but can significantly moderate the effect of political uncertainty. These findings have significant theoretical and practical implications, and extend our knowledge of the impact on uncertainty significantly, as well as bringing an institutional perspective to TCA. Further, they offer managers novel insight into the nature of different types of uncertainty, their impact on performance, and how channel decisions can mitigate these impacts.

A szerződések teljesülése a magyar élelmiszerláncban (Contract fulfilments in Hungarian food chains)

A tanulmány célja, hogy azonosítsa azokat a tényezőket, amelyek befolyásolják az élelmiszer-gazdasági kis- és közepes vállalkozások szerződéseinek teljesülését a Közép-magyarországi régióban. Számításaink megerősítik Guo-Jolly [2008] eredményeit, amely szerint a szerződések tartalmi elemeinek kulcsszerepük van a szerződések teljesülésében. Továbbá a vállalatvezetői képességek, a vállalati és tranzakciós jellemzők szintén jelentős hatást gyakorolnak a szerződések teljesülésére. Érdekes módon az ágazatspecifikus jellemzőknek csak korlátozott szerepük van a szerződések teljesülésének magyarázatában. / === / The paper analyses the contractual relations and contract fulfilment of small and medium-sized firms along the food chain, in the central region of Hungary, using survey data. The estimates also reveal that contract fulfilment is significantly affected by the design of the contract. They confirm that an important role in contract fulfilment is played by corporate and managerial attributes and transaction characteristics. Interestingly, branch-specific characteristics play only a limited role in explaining contract fulfilment.

Virtuális árhatás a Budapesti Értéktőzsdén = Virtual price effects on the Budapest stock exchange

Az árhatásfüggvények azt mutatják meg, hogy egy adott értékű megbízás mekkora relatív árváltozást okoz. Az árhatásfüggvény ismerete a piaci szereplők számára fontos szerepet játszik a jövőben benyújtandó ajánlataikhoz kapcsolódó árhatás előrejelzésében, a kereskedés árváltozásból eredő többletköltségének becslésében, illetve az optimális kereskedési algoritmus kialakításában. Az általunk kidolgozott módszer révén a piaci szereplők a teljes ajánlati könyv ismerete nélkül egyszerűen és gyorsan tudnak virtuális árhatásfüggvényt meghatározni, ugyanis bemutatjuk az árhatásfüggvény és a likviditási mértékek kapcsolatát, valamint azt, hogy miként lehet a Budapesti Likviditási Mérték (BLM) idősorából ár ha tás függ vényt becsülni. A kidolgozott módszertant az OTP-részvény idősorán szemléltetjük, és a részvény BLM-adatsorából a 2007. január 1-je és 2011. június 3-a közötti időszakra virtuális árhatás függvényt becsülünk. Empirikus elemzésünk során az árhatás függ vény időbeli alakulásának és alapvető statisztikai tulajdonságainak vizsgálatát végezzük el, ami révén képet kaphatunk a likviditás hiányában fellépő tranzakciós költségek múltbeli viselkedéséről. Az így kapott információk például a dinamikus portfólióoptimalizálás során lehetnek a kereskedők segítségére. / === / Price-effect equations show what relative price change a commission of a given value will have. Knowledge of price-effect equations plays an important part in enabling market players to predict the price effect of their future commissions and to develop an optimal trading algorithm. The method devised by the authors allows a virtual price-effect equation to be defined simply and rapidly without knowledge of the whole offer book, by presenting the relation between the price-effect equation and degree of liquidity, and how to estimate the price-effect equation from the time line of the Budapest Liquidity Measure (BLM). The methodology is shown using the time line for OTP shares and the virtual price-effect equation estimated for the 1 January 2007 to 3 June 2011 period from the shares BML data set. During the empirical analysis the authors conducted an examination of the tendency of the price-effect equation over time and for its basic statistical attributes, to yield a picture of the past behaviour of the transaction costs arising in the absence of liquidity. The information obtained may, for instance, help traders in dynamic portfolio optimization.

Marketing-szemléletmód és az üzleti kapcsolatok (Marketing-outlook and business relations)

A cikk az üzleti kapcsolatok marketingértelmezéséről szól. A marketing a piaci magatartás tudománya. A két vagy több partner között megvalósuló piaci tranzakció a marketing alapvető elemzési egysége. A piac dinamikáját a tranzakciók ismétlődései jelentik. Az ismétlődő tranzakciókból épülnek fel a piaci kapcsolatok.. A szervezetközi piac a gazdasági és nem gazdasági szereplők egymással kölcsönös függőségben lévő, a társadalmi környezetbe beágyazott kapcsolatrendszere, amelyben a tevékenységek és az erőforrások cseréje zajlik. A cikk kitér annak rövid bemutatására, hogy a különböző marketingterületek miként járulnak hozzá az üzleti kapcsolatok megismeréséhez. A szerző meghatározása szerint az üzleti kapcsolat az üzleti hálózatba ágyazott két szervezet közötti interaktív cserekapcsolatot jelent. A definíció kifejtése során bemutatásra kerülnek az üzleti kapcsolatok érintettjei, legfontosabb folyamatai, valamint a kapcsolat létének néhány következménye. __________ The article discusses the interpretation of business relations within the field of marketing. Marketing is the science of market behaviour. The basic segment of marketing analysis is the market transaction between two or more persons. The dynamics of the market is created by the repetition of transactions. Repeated transactions make market relations. Inter-organizational market is a network of interdependent relations among economic and non-economic actors embedded into the social environment, serving as a platform for the exchange of actions and resources. The article shortly describes how the different areas of marketing contribute to the knowledge of business relations. According to the author, business relations are interactive exchange relations between two organizations embedded in the business network. The detailed explanation of the definition introduces the parties involved in business relations, the most important processes, and some consequences of the existence of the relation.

Benefits of a marketing cooperative in transition agriculture: Mórakert purchasing and service co-operative

The paper analyses the potential benefits of marketing cooperatives in Hungary, employing a transaction cost economics framework. We found that the purchased quantity, the existence of contracts, flexibility and trust are the most important factors farmers consider when selling their products via a cooperative. The most striking result is that diversification has positive influences on the share of cooperatives in farmers’ sale. Furthermore, farmers with larger bargaining power have less willingness to sell their product to the cooperative. Surprisingly, asset specificity has rather negative effects on the share of cooperatives in members’ sales.

A korrupció társadalmi és intézményi szerkezete

A tanulmány első részében a megbízó-megbízott-kliens modellt fogalmi keretként alkalmazva a korrupció négy ideáltípusát mutatjuk be: míg a vesztegetést és zsarolást a megbízott és kliens közti, addig a hűtlen kezelést és csalást a megbízó és megbízott közti tranzakcióként definiáljuk. A korrupció ezen alaptípusait irányított gráfok segítségével ábrázoljuk. Ezt követően a korrupciós ügyletek szereplőinek lehetséges (pl. a tranzakciós költségek és a lebukási kockázatok csökkentésére irányuló) motivációit vizsgáljuk, vagyis azt, hogy mely tényezők ösztönzik leginkább a korrupciós helyzetek szereplőit arra, hogy tranzakcióikat különböző típusú személyes, üzleti, politikai és egyéb intézményes kapcsolathálókba ágyazzák. A második részben – támaszkodva korábbi kutatásaink eredményeire – néhány tipikus magyarországi korrupciós tranzakció társadalmi és intézményi beágyazottságát mutatjuk be. Négy esettanulmányt elemzünk részletesen, a bemutatott tipikus (pl. pártfinanszírozáshoz, vagy engedélyek megszerzéséhez kapcsolódó) korrupciós hálózatokat pedig többszereplős, bonyolult és multiplex gráfokkal ábrázoljuk. Végül a komplex hálózatok evolúciós vonatkozásait a szereplők számának, a kapcsolatok komplexitásának, valamint a személyi és/vagy intézményi beágyazottság mértékének tükrében vizsgáljuk. ______ In the first part of the paper four idealtypical corruption transactions are explicated in terms of the principal-agent-client model: bribery and extortion are described as two different types of agent-client relationship, while embezzlement and fraud as two different types of principal-agent relationship. The main idea is to describe these elementary corruption transactions as simple directed graphs. The next section of the paper takes into consideration different kinds of possible motivations (such as the reduction of risks or transaction costs) of the principals, agents and clients, in order to embed their corruption transactions in various kinds of personal, business, political and other institutional networks. In the second part of the paper some typical and stable network configurations are presented, based on a recent empirical corruption research carried out in Hungary. Certain corruption cases (such as party financing or granting of permit) are analyzed in details, and are described as complex and multiple networks. The paper concludes in showing some signs of the evolution of corruption networks in Hungary in terms of the number of actors, of the complexity of network configurations, of the level of personal or institutional embeddedness, and of the multiplexity of relationships.

A fundamentális transzformáció és a referenciapont szerepe a hiányos szerződések elméletében (The role of basic transformation and reference point in the theory of incomplete contracts)

A cikk Oliver Hart és szerzőtársai modelljeinek következtetéseit hasonlítja össze Williamson tranzakciós költségekre vonatkozó nézeteivel. Megmutatja, hogy a két irányzat a vállalat vagy piac kérdéskörében más eszközöket használ, de hasonlóan érvel. Megismerkedhetünk Williamson Harttal szemben megfogalmazott azon kritikájával, hogy Hart modelljeiben az alkunak nincsenek tranzakciós költségei, illetve a kritika kritikájával is. Hart elképzeléseit támasztja alá a tulajdonjogi irányzaton belül nemrégiben kialakult referenciapont-elmélet, amely kísérleti lehetőségeket is nyújt a különböző feltételezések igazolására. ____ The article compares the conclusions from the models of Oliver Hart et al. with the views of Williamson on transaction costs. It shows that the two schools use different means on the question of the firm or the market, but similar reasoning. The author covers Williamson's criticism of Hart that there are no transaction costs in his models, and also the criticism of that criticism. Hart's notions are supported by the recently developed theory of reference point within the property-right trend, which offers chances of experimental proof of the various assumptions.

Fifty shades of innovation – from open toward user, and open collaborative forms of innovation – an overview

Starting from the Schumpeterian producer-driven understanding of innovation, followed by user-generated solutions and understanding of collaborative forms of co-creation, scholars investigated the drivers and the nature of interactions underpinning success in various ways. Innovation literature has gone a long way, where open innovation has attracted researchers to investigate problems like compatibilities of external resources, networks of innovation, or open source collaboration. Openness itself has gained various shades in the different strands of literature. In this paper the author provides with an overview and a draft evaluation of the different models of open innovation, illustrated with some empirical findings from various fields drawn from the literature. She points to the relevance of transaction costs affecting viable forms of (open) innovation strategies of firms, and the importance to define the locus of innovation for further analyses of different firm and interaction level formations.

Hedging under liquidity constraints

Although risk management can be justified by financial distress, the theoretical models usually contain hedging instruments free of funding risk. In practice, management of the counterparty risk in derivative transactions is of enhanced importance, consequently not only is trading on exchanges subject to the presence of a margin account, but also in bilateral (OTC) agreements parties will require margins or collateral from their partners in order to hedge the mark-tomarket loss of the transaction. The aim of this paper is to present and compare two models where the financing need of the hedging instrument also appears, influencing the hedging strategy and the optimal hedging ratio. Both models contain the same source of risk and optimisation criterion, but the liquidity risk is modelled in different ways. In the first model, there is no additional financing resource that can be used to finance the margin account in case of a margin call, which entails the risk of liquidation of the hedging position. In the second model, the financing is available but a given credit spread is to be paid for this, so hedging can become costly.

EU-s források a vállalkozások tőkeellátottságának javítására - A JEREMIE Kockázati Tőkeprogram (EU funds to improve the capitalization of the companies – JEREMIE Venture Capital Program)

A hazai kis- és középvállalkozások (kkv-k) tőkeellátottságának javítása meghatározó szerepet játszik fejlődésük előmozdításában. Jelen tanulmány az Új Széchenyi Terv (ÚSZT) keretében a vállalkozások rendelkezésére álló pénzügyi eszközök közül a kockázati tőke működését mutatja be. A fejlődésük növekedési ciklusában járó cégek mellett a korai életszakaszukban járó, innovatív tevékenységet folytató, gyors növekedésre képes, de forráshiányos vállalkozások finanszírozásában nyújthat segítséget Magyarországon a 2010-ben elindult JEREMIE Kockázati Tőkeprogram. Az állami és a privát tulajdonban levő piaci szereplők hazánkban újnak mondható együttműködése révén megvalósuló program a magyar kockázatitőke-piac kínálati oldalának bővítését szolgálja, abban az alsó (döntően az 1-1,5 millió EUR/tranzakció alatti) szegmensben, ahol a tisztán piaci alapon működő befektetők korlátozottabb szerepvállalása figyelhető meg, és így a piacon hiány jelentkezik. Az EU-s támogatások ezen új típusú felhasználási formája színesíti és kibővíti a vállalkozások számára elérhető pénzügyi eszközök körét és volumenét, fokozottabb mértékben érvényesül a piaci szemlélet, hiszen verseny van a forrásokért, és verseny van a források kihelyezését végző pénzügyi közvetítő szervezetek között is, mindezek mellett további magánforrások bevonását biztosítja, ösztönzőleg hat a cégek működésére, és a visszaforgó rendszer biztosítja a fenntarthatóságot, a források későbbi újbóli felhasználását is. _______ To improve the capitalization of the domestic small and medium-sized enterprises (SMEs) has a decisive role in promoting development. This study presents the operation of venture capital from the available business financial instruments of the New Széchenyi Plan. In Hungary the JEREMIE Venture Capital Program, which launched in 2010, can help in financing of the rapidly growth, innovative, early life stage companies besides the development cycle of growth companies. This program with new cooperation between the stateowned and private companies enlarge the supply-side of the Hungarian venture capital market, at that the bottom (mostly in the 1 to 1.5 million EUR / transaction below) segment, where can be observed the limited role of the purely market-based investors, and thus there is a shortage in the market. These new type application form of the EU supports enriches and expands the scope and volume of the available financial instruments for the enterprises, the market orientation prevails more broadly, because there is a competition for resources and there is a competition between the resources allocation financial intermediaries,in addition ensures further private resources.

Globalization of the Internet: Convergence or a multicultural community?

The purpose of this dissertation was to investigate cross-cultural differences in the use of the Internet. Hofstede's model of national culture was employed as the theoretical foundation for the analysis of cross-cultural differences. Davis's technology acceptance model was employed as the theoretical foundation for the analysis of Internet use. ^ Secondary data from an on-line survey of Internet users in 22 countries conducted in April 1997 by the Georgia Tech Research Corporation measured the dependent variables of Internet use and the independent variables of attitudes toward technology. Hofstede's stream of research measured the independent variables of the five dimensions of national culture. ^ Contrary to expectations, regression analyses at the country level of analysis did not detect cultural differences. As expected, regression analyses at the individual level of analysis did detect cultural differences. The results indicated that perceived usefulness was related to the frequency of Internet shopping in the Germanic and Anglo clusters, where masculinity was high. Perceived ease of use was related to the frequency of Internet shopping in the Latin cluster, where uncertainty avoidance was high. Neither perceived usefulness nor perceived ease of use was related to the frequency of Internet shopping in the Nordic cluster, where masculinity and uncertainty avoidance were low. ^ As expected, analysis of variance at the cluster level of analysis indicated that censorship was a greater concern in Germany and Anglo countries, where masculinity was high. Government regulation of the Internet was less preferred in Germany, where power distance was low. Contrary to expectations, concern for transaction security. was lower in the Latin cluster, where uncertainty avoidance was high. Concern for privacy issues was lower in the U.S., where individualism was high. ^ In conclusion, results suggested that Internet users represented a multicultural community, not a standardized virtual community. Based on the findings, specific guidance was provided on how international managers and marketers could develop culturally sensitive strategies for training and promoting Internet services. ^