Quote activity and round quotes in a voice-brokered bond market

We investigate the relation between quote activity and the precision with which prices are quoted. Where prior literature finds that the tendency of price-endings to cluster on rounder fractions declines monotonically with quote activity, we show that the decline is limited to an initial range of quote activity. Once a very high level of quote activity is reached, the use of rounder quotes increases with quote activity. Also contrary to the conventional view is our finding that round quotes are used more frequently in the more active of two market segments where equivalent assets are traded. We attribute our results to two opposing influences of activity on price clustering, the price resolution and negotiation effects, that reflect the cognitive limitations of humans when dealing with uncertain values.     

Asymmetric Information and the Russian Individual Savings Market

The article considers the influence of informational imperfections on the performance of the Russian financial market. The focus is on the individual savings market, which exhibits inefficiencies, including those associated with the market power of a dominant agent—Sberbank. Reinforcement of Sberbank's dominance on the market in the period 1994‐98 (before the August default combined with financial crisis) is explained as a consequence of asymmetric information about the probability of bankruptcy of a new bank. Under asymmetric information a new private bank has to provide specific quality signals in order to attract depositors. Two major lines of inquiry are the criteria for choosing forms of savings, including that of a bank in which to deposit money, by Russian citizens, and banks' advertising strategies to confirm the factual risk of default. Within the conceptual framework of a game with separating equilibrium, we analyse the behaviour of the agents on both supply and demand sides in the market. We find that there is evidence of using advertising as a tool of quality signalling at a certain phase of the Russian individual savings market's development.     

Pluralism or isolation of Civilisations? Russia's foreign policy discourse and the reception of Huntington's paradigm of the post‐cold war world

This paper studies the effects of Samuel Huntington's ‘Clash of Civilisations’ thesis on Russian foreign policy discourse. In response to Huntington's thesis, two major currents of Russia's foreign policy thinking ‐ Liberals and Nationalists ‐ are identified, both of which are critical of the thesis. The two groups offer diametrically opposed alternatives to Huntington's paradigm of the post‐Cold War world. The Liberal‐Nationalist controversy reflects Russia's debates about its own political identity and provides us with a rich and informative understanding of the process of identity formation. By identifying Russia's various reactions to the ‘Clash of Civilisations’ thesis, the paper identifies potential influences of various currents in Russian foreign policy thinking on the country's future foreign policy. It also suggests some implications for further studies of cultures/civilisations in international politics.     

ESTIMATING DIRECTIONAL MIGRATION FLOWS FROM AGE-SPECIFIC NET MIGRATION DATA

This paper focuses on a method for indirectly inferring migration flows in the absence of migration data, using two successive counts of birthplace-specific population stocks . Such stocks have been used in the past to infer patterns of mortality and indeed of net migration. But a workable method for using such population stocks to indirectly estimate directional migration flows still eludes us. Widely observed regularities in the age patterns of outmigration indicate that age-specific propensities of migration are correlated, and this characteristic suggests an estimation method that directs attention to the age-specific relative propensities of two or more flows exhibited in the historically preceding time intervals, and then uses those past measures of relative propensities to disaggregate residually estimated net migration flows into the underlying contributions of inmigration and outmigration. A detailed demonstration of the method, applied to US data, is set out in this paper.     

Sorting equilibrium in a multi-jurisdiction model

This paper analyzes a general model of an economy with heterogeneous individuals choosing among two jurisdictions, such as towns or political parties. Each jurisdiction is described by its constitution, where a constitution is defined as a mapping from all possible population partitions into the (possibly multidimensional) policy space. This study is the first to establish sufficient conditions for existence of sorting equilibria in a two-jurisdiction model for a policy space of an arbitrary dimension.     

哈佛商学院

商业模式中的“第22条军规” 像信用卡这类需要买、卖双方同时支持才能运作的商业模式,我称之为“双面平台”（two-sided platforms）。这类商业在起步阶段,公司通常得先补贴平台的一方。这种方式前期投资大、风险高。更安全的做法是分步开发,一些成功的网络公司,比如Google和亚马逊就是这么做的。     

Welfare State and Taxation in Russia: the Contradictions of the Unified Social Tax

The Unified Social Tax (UST) was introduced in Russia in 2001 as part of a comprehensive reform of the tax and social security system. Five years on, this article offers a preliminary assessment of the positive effects of UST so far and the problems that remain.     

Experimental Evidence on Portfolio Size and Diversification: Human Biases in Naïve Security Selection and Portfolio Construction

We conduct an experiment in which individuals select securities to reproduce the well‐known relationship between portfolio risk and the number of securities. The standard result occurs on average but not for most individuals, many of whom effectively de‐diversify as they add seemingly random securities. Moreover, only slightly better results are achieved using a random number generator. This finding challenges the belief that only a small number of securities are required for diversification and shows that it is applicable only to a large sample. The implications are important given that many individual investors hold very few stocks in their portfolios.     

Neglected risks,financial innovation,and financial fragility

We present a standard model of financial innovation, in which intermediaries engineer securities with cash flows that investors seek, but modify two assumptions. First, investors (and possibly intermediaries) neglect certain unlikely risks. Second, investors demand securities with safe cash flows. Financial intermediaries cater to these preferences and beliefs by engineering securities perceived to be safe but exposed to neglected risks. Because the risks are neglected, security issuance is excessive. As investors eventually recognize these risks, they fly back to the safety of traditional securities and markets become fragile, even without leverage, precisely because the volume of new claims is excessive.