Tài liệu miễn phí Đầu tư Chứng khoán
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So the kinds of volatility changes we are observing as
consequences of (large) changes in option holdings may in fact be caused by quite substantially
different manager behavior. In addition, we should not overlook the possibility that the movements
we observe are caused by a small number of truly titanic business shifts encouraged by option
holdings (say, Encyclopaedia Britannica choosing to put a large fraction of it’s resources and
corporate health into a bet on britannica.com), together with a larger number of firms where the
option grants have little or no effect on manager behavior....
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The current Alberta law governing transfers of investment securities is
found in the Alberta Business Corporations Act (ABCA). Like the provisions
in most other Canadian Business Corporations Acts, it is based upon the pre-
1962 version of Article 8 of the U.S. Uniform Commercial Code (UCC). It
relies upon the concepts of possession and delivery of a physical object - the
negotiable security certificate. At one time, the settlement of a normal
securities transaction involved the actual delivery of certificates between
buyers and sellers, but this was a laborious...
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Our notion of what triggers a boom-bust cycle is very stylized: the signal occurs
on a particular date and people learn that it is exactly false on another particular
date. In more realistic scenarios, people form expectations based on an accumulation
of various signals. If people’s expectations are in fact overoptimistic, they come to
this realization only slowly and over time. Although the trigger of the boom-bust
cycle in our analysis is in some ways simplistic, it has the advantage of allowing us
to highlight a result that we think is likely to survive in more realistic settings....
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Our results are as follows. We find that - within the confines of the set of models
we consider - it is hard to account for a boom-bust episode (an episode in which
consumption, investment, output, employment and the stock market all rise sharply
and then crash) in a model that abstracts from nominal frictions. However, when we
introduce an inflation targeting central bank and sticky nominal wages, a theory of
boom-busts emerges naturally. In our environment, inflation targeting suboptimally
converts what would otherwise be a small economic fluctuation into a major boom-
bust episode. In this sense, our analysis is consistent with the view that boom-bust
episodes...
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Our results are based on model simulations, and so the credibility of the findings
depends on the plausibility of our model. For the purpose of our results here, the two
cornerstones of our model are sticky wages and an estimated Taylor rule. That the
latter is a reasonable way to capture monetary policy has almost become axiomatic.
Sticky wages have also emerged in recent years as a key feature of models that fit
the data well (see, for example, the discussion in Christiano, Eichenbaum and Evans
(2005).) The view that wage-setting frictions are key to understanding aggregate
fluctuations is also reached by a very different type of...
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That sticky wages and inflation targeting are uneasy bedfellows is easy to see.
When wages are sticky, an inflation targeting central bank in effect targets the real
wage. This produces inefficient outcomes when shocks occur which require an adjust-
ment to the real wage (Erceg, Henderson and Levin (2000).) For example, suppose
a shock - a positive oil price shock, say - occurs which reduces the value marginal
product of labor. Preventing a large fall in employment under these circumstances
wouldrequireadropintherealwage.Withstickywagesandaninflation-targeting
central bank, the required fall in the real wage would not occur and employment
would be inefficiently low....
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When there are frictions in setting nominal wages, however, a
riseintherealwagerequiresthatinflationbeallowedtodriftdown.Theinflation
targeting central bank, seeing this drift down in inflation, cuts the interest rate to
keep inflation on target. In our model, this cut in the interest rate triggers a credit
boom and makes the economic expansion much bigger than is socially optimal. In a
situation like this, a central bank that ‘leans against the wind’ when credit expands
sharply would raise welfare by reducing the magnitude of the boom-bust cycle....
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Thenotionthatinflation targeting increases the likelihood of stock market boom-
bust episodes contradicts conventional wisdom. We take it that the conventional
wisdom is defined by the work of Bernanke and Gertler (2000), who argue that
an inflation-targeting monetary authority automatically stabilizes the stock market.
The reason for this is that in the Bernanke-Gertler environment, inflation tends to
rise in a stock market boom, so that an inflation targeter would raise interest rates,
moderating the rise in stock prices....
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So far, we have stressed that integrating nominal variables and inflation targeting
into the analysis is merely helpful for understanding boom-bust episodes. In fact, if
one is not to wander too far from current standard models, it is essential.
To clarify this point, it is useful to think of the standard real business cycle model
that emerges when we strip away all monetary factors from our model. If we take a
completely standard version of such a model, a signal shock is completely incapable
of generating a boom-bust that resembles anything like what we see. Households in
effect react to the signal by going on vacation: consumption...
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So, our real business cycle model cannot simultaneously generate a rise in the
price of capital and a rise in investment, in response to a signal about future produc-
tivity. The real business cycle model has two additional shortcomings. It generates
an extremely large jump in the real interest rate and it generates very little per-
sistence. It really only generates a boom-bust pattern in consumption, investment,
employment and output when the signal is about a shock that will occur four quar-
ters in the future. If the signal is about a shock, say, 12 quarters in the future, agents
go on an 8 quarter vacation and...
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Table 1 contains a summary, by species, of the information included in the stock assessments, and also indicates
those that have been revised since the 1999 publication. A total of 28 of the 60 Atlantic and Gulf of Mexico stock
assessment reports were revised for 2000. Most of the proposed changes incorporate new information into sections on
population size and mortality estimates. The revised SARs include 15 strategic and 13 non-strategic stocks. For the first
time, individual species abundance estimates are available for the Western North Atlantic Stocks of Atlantic spotted and
Pantropical spotted dolphins. The Rmax value for...
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After analyzing the simple monetary model, we move on to the full monetary
model of Christiano, Motto and Rostagno (2006). That model incorporates a banking
sector and the financial frictions in Bernanke, Gertler and Gilchrist (1999). This
model is interesting for two reasons. First, we use the model to investigate the
robustness of our findings for boom-busts. We feed the model the same signal about
future technology that turns out to be false that we fed to our real business cycle and
simple monetary models. We find that the full and simple monetary models behave
quite similarly. The second reason it is interesting to study boom-bust episodes...
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New amendments signed into law in August 2003 provide greater protec-
tion to people who invest their hard-earned money and, all too often, find
they are victims of unscrupulous con-artists.The amendments target indi-
viduals who use false financial statements to induce people to invest their
money. They also make it a violation for employees of brokers and advisers
to engage in unethical behavior and to fail to maintain records and docu-
ments required by law. In addition, the amendments allow the appointment
of special agents to exercise police powers against those committing finan-
cial crimes, and also strengthen the chances of returning investor assets to
defrauded investors by including...
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North Korea’s centrifuge program poses both a horizontal and a vertical proliferation threat. It is an
avenue for North Korea to increase the number and sophistication of its nuclear weapons and for it to
proliferate to others who seek to build their own centrifuge programs. As a result, the priority is finding
ways to either stop the program or to delay its progress through a combination of negotiations and
sanctions.
Procurement data obtained by governments and information from Pakistan, establish that North Korea is
developing centrifuges. However, determining the centrifuge program’s status and the locations ...
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Faced with uncertainties in assessments of North Korea’s centrifuge program, the U.S. intelligence
community focused on the significance of the 2007 and 2008 discoveries of traces of highly enriched
uranium (HEU) found on North Korean aluminum tubes and operating records for the Yongbyon nuclear
reactor. The discoveries raised anew concerns that North Korea had a secret gas centrifuge plant
operating by the mid-2000s, contradicting assessments based on procurement data. The enriched uranium
particles remain the most direct evidence that North Korea has produced highly enriched uranium. But
the reported lack of consensus on their meaning warrants...
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North Korea has stated it intends to build a large enrichment plant this decade, and there is no reason to
doubt its intentions. To succeed, North Korea will likely need to overcome several technical challenges.
North Korea could also face additional difficulties in completing the plant as a result of actions by the
United Nations Security Council and the broader international community.
The most effective way to end the threats posed by North Korea’s centrifuge program is through
negotiations, even though that route currently looks difficult. If discussions with North Korea resume,
negotiators...
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Equally important, negotiators should focus early on obtaining a North Korean commitment that it will
halt illicit procurements from abroad for its nuclear programs and end the proliferation of its nuclear
technology. The latter is especially important for negotiations to establish in a verifiable manner.
While waiting for negotiations to bear fruit, the United States and its allies will face two interconnected
challenges. They must slow down North Korea’s centrifuge program, or at least make progress more
costly and visible to the international community. In addition, they must ensure that North Korea does
not...
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North Korea frequently procures for its uranium enrichment program either directly in China or by using
it as a transshipment point. China is unlikely to view North Korea’s continued illicit procurement for its
nuclear program as strengthening Chinese national security interests. Most believe that China views
North Korea’s nuclear weapons program as destabilizing to the region. Likewise, there is no evidence that
the Chinese government is secretly approving or willfully ignoring exports to North Korea’s centrifuge
program in an effort to strengthen North Korea’s nuclear weapons program. Nonetheless, China is not
applying enough resources to detect and...
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Since mid-2009, North Korea has admitted it has
a uranium enrichment program and implied that
it will enrich uranium on a significant scale in
the near future. After years of denial, North
Korea mentioned its uranium enrichment
program in public statements as tensions
increased following its ballistic missile test in
April 2009, its May 2009 nuclear test, and the
subsequent imposition of United Nations
Security Council sanctions against North Korean
trading entities.
Despite its announcements, determining when it
may produce significant quantities of highly
enriched uranium (HEU) remains challenging.
Although North Korea has not provided...
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Interpreting these elliptic announcements is
challenging, but most believe that North Korea is
unlikely to be bluffing about pursuing uranium
enrichment. Moreover, few believe that if North
Korea does build an enrichment plant, the
enriched uranium will be strictly for peaceful
nuclear uses. More likely, the plant will produce
highly enriched uranium for nuclear weapons.
Fueling this assessment, North Korea has not
demonstrated any capability to build a light
water reactor, which requires a range of
technological capabilities that are lacking in the
country. However, it is unclear whether North
Korea can successfully build and...
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Since the passage of resolution 1874 in 2009, the
panel of experts did not learn of any official
allegations about North Korea receiving or
providing proscribed nuclear-related or ballistic
missile-related items, technology, or know-how.
Nonetheless, its review of several government,
International Atomic Energy Agency (IAEA),
and private assessments indicated continuing
North Korean involvement in nuclear and
ballistic missile related activities in certain
countries, including Iran, Syria, and Myanmar.
8
Potential customers of centrifuge technology
remain hard to identify with certainty. But the
reclusive military regime in Myanmar may have
already benefited from North Korean largesse in...
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The market prices of bank securities, such as equities, provide important in-
formation for market participants, for central banks with Önancial stability re-
sponsibilities, and for bank supervisors, from at least Öve di§erent perspectives.
First, a bankí s equity price may e§ectively summarise all the public informa-
tion available from the bank, including potential risks, in one number. Second,
when working under the e¢ cient-market hypothesis, banksísecurities prices at
any point in time have a forward looking component in that they incorporate
expectations of both positive and negative future earnings prospects. Third, the
banksíshare price information is available at much higher frequency compared
with accounting information. Fourth, as Önancial...
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Our analysis also contributes to assessing market e¢ ciency in a way that
it investigates how the markets price in information about banks and how this
process may di§er across di§erent types of banks. To that end, we apply a
large panel of 53 EU banks using a stationary vector autoregressive (VAR) sys-
tem that allows us to focus on such Örm-level e§ects. A further contribution
to the literature is provided by the fact that we also want to analyse whether
large banksístock prices could be a§ected by di§erent factors than small banksí
stock prices. This could have important implications from the point of view
of Önancial stability...
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To keep our analysis focused, we abstract from other channels emphasized
in the literature through which expectations may have an immediate impact
on current economic activity such as time-to-build, capital adjustment costs,
or consumption smoothing. Also, it should be clear that we do not believe
that the economic expansion experienced by the U.S. economy during the
second half of the 1990s was entirely driven by expectations of future higher
productivity growth. Rather, we see our explanation as complementary to
the actual improvement in firm level technology which, for simplicity, we
omit from the analysis.
Section 1 reviews the main events experienced by the U.S. economy in
the 1990s. Section 2...
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Recent imperfect capital market theories (e.g., Bernanke and Gertler
(1989), Gertler and Gilchrist (1994), Kiyotaki and Moore (1997)) predict
that changing credit market conditions can have very di®erent e®ects on
small and large ¯rms' risk. Agency costs induced by asymmetry in the infor-
mation held by ¯rms and their creditors make it necessary for ¯rms to use
collateral when borrowing in the credit markets. Small ¯rms, it is argued,
typically do not have nearly as much collateral as large ¯rms and will not
have the same ability to raise external funds. Therefore, small ¯rms will
be more adversely a®ected by lower liquidity and higher short-term interest
rates....
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Such theories do not simply have the cross-sectional implication that small
¯rms' risk will be more strongly a®ected by tighter credit markets in all eco-
nomic states. Based on the idea that a decline in a borrower's net worth
raises the agency cost on external ¯nance, the theories identify asymmetries
in the e®ect of tighter credit market conditions on risk during recessions and
expansions. In a recession, small ¯rms' net worth, and hence their collateral,
will be lower than usual and tighter credit markets will be associated with
stronger adverse e®ects than during an expansion when these ¯rms' collateral
is higher. ...
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Investor relations is the term used to describe the
ongoing activity of companies communicating with
the investment community. While the communication
that quoted companies undertake is a mix of
regulatory and voluntary activities, investor relations
is essentially the part of stock market life that sees
companies interacting with existing shareholders,
potential investors, analysts and journalists.
As this guide details, investor relations can take
many forms, for example, meetings with investors,
company news-releases, annual reports and
websites. The commonality however, is that each
of the communication tools that companies utilise
are designed to inform stakeholders about the
company, so that they can gain a greater
understanding...
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One of the outcomes quoted companies aim for
from their investor relations activities is to attract
liquidity – frequency of trading in their shares.
Profiling and explaining the company to the
investment community on a continual basis can
assist in creating greater awareness of a company
Depending on the availability of shares, this can
then assist a company in attracting pools of buyers
and sellers and the potential for higher frequency
in the trading of its shares.
Fair valuation
Similarly, one of the other main goals of investor
relations is for a company to achieve a fair market
valuation, ultimately reflected in the share...
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Practising investor relations will not automatically
guarantee a company heightened profile, easy
access to capital, liquidity in its shares or a fair
share price. Naturally, other factors outside and in
addition to a company’s own activities, such as the
economic situation, a company’s fundamentals,
confidence in its management team, the availability
of shares and competition for investors’ money, can
have an impact on how a company is perceived,
funded, traded and valued by the market.
Rather, the aim of embarking on an ongoing
investor relations programme is that it enables the
investment community to have greater awareness
of the company’s investment...
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Institutional investors are, by some margin, the
most important category of investor to quoted
companies owing to the sheer weight of assets
that they manage and the degree to which they can
invest. It is widely acknowledged that institutional
investors own the vast majority of the UK equity
market. In some cases, institutional investors may
also own nearly all of a company’s issued share
capital. Their influence extends beyond their total
assets under management since, compared to
individual private investors, investment decision
making, including voting, is concentrated in a much
smaller group of individuals.
A key attraction of institutional investors to...
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