Banks perform the essential economic task of collecting funds from net savers (such as households) and lending funds to net borrowers (such as firms). In doing so, banks transform assets with respect to size, maturity, and risk. As a result, banks are exposed to a variety of risks. This thesis consists of two parts where particular aspects of bank risk are discussed. The first part is concerned with the question how banks themselves deal with certain aspects of bank risk by using the interbank market. An important issue for bank risk and financial stability is the structure of interbank markets and thus the determinants of banks' choice of their interbank market partner. Information between banks is a crucial factor for explaining bank behavior. More precisely, heterogeneity in information can explain the formation of widely observed structures. Another important issue concerns the conditions under which an interbank trade takes place once a bank has found an interbank market partner. The central bank is able to influence these conditions, for example, by adapting the policy rates related with the standing facilities. Contrary to the current belief, it is shown that not only a narrow but also a wide corridor between these policy rates can prevent interbank lending. The second part of the thesis is concerned with the question how regulators deal with certain aspects of bank risk when banks are internationally active. Regulation of multinational banks causes regulatory externalities from the country which is responsible for the bank's supervision to other countries where the bank is active. An obvious way to internalize these externalities is the setting-up of a banking union. The incentive of a single country to join a banking union depends on the size and structure of the banking sector. This can be verified by considering the current situation in the European Banking Union. Without a banking union, national regulators do not internalize regulatory externalities. This may result in a “race to the top” in regulatory standards because higher regulatory standards imply a saver banking sector and relocate losses to the foreign country.

Tvirtos tarpvalstybinės ir nacionalinės tarpbankinės rinkos yra svarbios gerai veikiančioms finansų sistemoms. Neprižiūrimos tarpbankinės pozicijos gali sukelti domino efektą. Paprastai tarpbankinė skolinimo rinka prisideda prie finansų rinkų efektyvumo, ji atlieka svarbų vaidmenį užtikrinant likvidumą visai finansų sistemai. Būtent šioje rinkoje, bankai skolinasi ir skolina lėšas tarpusavyje, taip suteikdami likvidžias lėšas kitam bankui kuriam tuo metu reikia. Tačiau tarpbankinės paskolų rinkos yra neapdraustos, tokiu būdu jų poveikis skolininkams yra didelis, nes jie yra neapsaugoti. Darbe sprendžiama problema – kaip teisingai vertinti valstybės tarpbankinę rinką, jos sandorius, ir kaip jie priklauso nuo kitų finansinių rinkų. Tyrimo objektas – 2008-2010 m. Lietuvos finansinių institucijų tarpbankiniai sandoriai. Tyrimo tikslas – atlikti vidutinių tarpbankinių skolinimo sandorių sumų Lietuvoje 2008 – 2011 metais ekonometrinę analizę ir atlikti prognozę. Siekiant įgyvendinti šį tikslą, išsikelti šie uždaviniai: 1. Išanalizuoti finansinių institucijų veiklos įtaką ekonomikai. 2. Išnagrinėti finansinių institucijų priežiūros ypatumus. 3. Išanalizuoti finansinių institucijų sisteminės rizikos valdymo teorinius ir empirinius tyrimus. 4. Išanalizuoti veiksnius, kurie daro įtaką vidutinėms tarpbankinio skolinimo sandorių sumoms. 5. Sudaryti vidutinių tarpbankinio skolinimo sandorių sumų Lietuvoje ekonometrinį modelį. Šiame darbe iškeltos hipotezės: 1. Tarpbankinių sandorių... [toliau žr. visą tekstą] / Strong cross border and national interbank market are important for well-functioning financial systems. Unsupervised interbank exposures may lead to a domino effect. Usually interbank lending market is contributing to the efficiency of financial markets, it plays an important role in the market to ensure liquidity in the financial system as a whole. In this market, banks borrow and lend money among themselves, and providing liquidity to another bank which at the time of need. However, the interbank lending markets are not covered, so their impact on borrowers is high, because they are ex-posed. Main problem of final master’s work - how to correctly assess the state inter-bank market, the transactions and how they depend on other financial markets. The object of research – 2008-2010 Li-thuanian financial institutions' interbank transactions. The purpose of work – a medium-sized inter-bank lending transactions in amounts of Lithuania 2008 - 2011 was an econometric analysis and estimates. Tasks of the work: 1. Analyze the financial institutions in the economy. 2. Examine the features of supervision of financial institutions. 3. Analyze the financial institution of systemic risk management theory and em-pirical research. 4. Analyze the factors that influence medium-sized inter-bank lending transaction amounts. 5. Develop a medium-sized inter-bank lending transactions in Lithuania amounts of an eco-nometric model. The hypothesis of the paper: 1. Volume of interbank transactions... [to full text]