Reserve accumulation and financial crises: From individual protection to systemic risk

This paper provides a new perspective on the relationship between countries׳ international reserve holdings and financial crises: while the “local” view holds that reserves may prevent domestic crises, it overlooks that the accumulation of reserves relaxes the financing constraint of the reserve currency country and may cause a financial crisis in the centre, which is transmitted globally. According to this “global” view reserve accumulation might destabilize the international financial system. Since the crisis affects all countries alike, the accumulation of reserves imposes a negative externality on non-accumulating countries.We integrate this idea in a theoretical model of the optimal amount of reserves and illustrate the gap between local and global optimality: the consideration of systemic risk lowers the demand for reserves. Moreover, if a supranational authority determines the optimal level of reserves, it internalizes the negative externality and accumulates fewer reserves. A macroprudential tax on reserve hoardings might implement the socially optimal solution. Our calibration analysis shows that these considerations are economically significant: they lower the optimal amount of reserves in the benchmark case by 45%.     

Information-based contagion and the implications for financial fragility

This paper explores a global game model of information-based financial contagion. By revealing information on a common fundamental factor and thereby affecting the behavior of creditors, the failure of a single firm can trigger the failure of another firm. The model provides a unique equilibrium framework to assess the consequences of contagion and yields some hitherto unnoticed insights. While contagion increases the correlation among the financial failures of different firms, its impact on the incidence of failure is ambiguous. I consider an analytically tractable version of the model in which the effect on the ex ante failure probabilities is exactly zero. Moreover, the impact of contagion increases with the relevance of a common underlying fundamental, but is limited to firms near the brink of success or failure.     

Charter value,risk-taking and systemic risk in banking before and after the global financial crisis of 2007-2008

ABSTRACT

We investigate how bank charter value affects risk for a sample of OECD banks by using standalone and systemic risk measures before, during, and after the global financial crisis of 2007–2008. Prior to the crisis, bank charter value is positively associated with risk-taking and systemic risk for very large ‘too-big-too-fail’ banks and large U.S. and European banks but such a relationship is inverted during and after the crisis. A deeper investigation shows that such a behaviour before the crisis is mostly relevant for very large banks and large banks with high growth strategies. Banks’ business models also influence this relationship. We find that for banks following a focus strategy, higher charter value amplifies both standalone and systemic risk for large U.S. and European banks. Our findings have important policy implications and cast doubts on the relevance of the uniform more stringent capital requirements introduced by Basel III.     

黑龙江省农村金融领域的信用风险及其防范

信用是市场经济的基础,也是市场经济的必然产物,因此,信用风险一旦发生就会对经济发展产生诸多不利影响,在金融领域的影响尤为严重。中国作为一个农业大国,农村金融领域发生信用风险就会严重地制约经济的总体发展水平。因此,从农村金融的角度,以黑龙江省为例,提出合理防范农村金融领域的信用风险,对黑龙江省整体县域经济发展具有重要意义。基于此,分析了农村金融领域信用风险产生的原因和对区域性农业经济发展的影响,提出了相应的风险防范措施.     

Monetary policy and systemic risk-taking in the euro area banking sector

Available empirical evidence on the significance of the (micro) risk-taking channel of monetary policy is not enough to indicate a threat to financial stability. Evidence of risk-taking with systemic risk implications is necessary. Statistical measures that capture systemic risk in all its forms within a structural factor-augmented vector autoregressive model suggest that conventional and unconventional monetary policies have resulted in systemic risk-taking in the euro area banking sector. Systemic risk has taken the form of an increase in the banking sector’s vulnerability via contagion and interconnectedness. Banks’ balance sheets, however, do not account for the full transmission from (micro) risk taking to systemic risk-taking. The main policy implication is that a persistently accommodative monetary policy may drive a monetary authority with a price stability mandate to consider a possible trade-off with financial stability. At a minimum, coordination between monetary and macro-prudential policies requires serious consideration.     

The time-varying characteristics of the Chinese financial cycle and impact from the United States

ABSTRACT

Although there have been many empirical studies about the financial cycle since the financial crisis of 2008, few have analysed the structural changes in the Chinese financial cycle over time. The Chinese financial development process is short, and it is difficult to obtain accurate results on the measurement of the financial cycle. Based on wavelet analysis, this paper analyzes the time-varying characteristics of the Chinese financial cycle and the relationship between the financial and business cycles. In addition, we measure the impact from the United States. This paper draws three conclusions. Firstly, in terms of the characteristics of cycles, the existence of Chinese business cycle and financial cycle is proved, while the credit cycle, leverage cycle, stock market cycle and property cycle are quite different. Specifically, China has a 5.8-year credit cycle, an 8-year stock market cycle, 3.4-year and 12-year business cycles and a 15-year leverage cycle. Secondly, the financial cycles can serve as leading indicators of the business cycle, though the relationships between them are change overtime. Finally, the United States has a significant impact on the Chinese financial cycle with a ‘decoupling-recoupling’ effect, which is mainly reflected in the leverage cycle and the stock market cycle.     

美国金融监管改革对中国的启示

2010年奥巴马签署的《美国金融改革法案》旨在解决此次金融危机中所暴露出来的金融市场系统性风险,在不断推进金融创新的同时,加强对金融业的监管,最大限度的保护广大投资者的利益。该法案是近年来对美国未来金融业发展以及金融机构监管较为深远的一项改革法案。它将给中国金融市场提供有益的借鉴,要求我们既要尊重金融市场化发展规律,推进金融创新,加强市场透明度,同时也要在统一监管方面做足功课,并积极促进国内监管改革向国际接轨。     

美国金融危机成因分析及对中国的警示

美国金融危机引发全球金融市场动荡。这场金融危机从美国的房地产市场开始,以惊人的速度蔓延,波及至信贷市场、资本市场,封全球尤其是西方金融机构和金融市场造成重大冲击,短期内升级为全球金融风暴。中国目前正处于资产价格上涨、信贷投放过度的经济环境之中,美国的金融危机给中国敲响了警钟。本文通过描述此次危机的发展脉络,在分析美国金融危机背景的基础上,从强化房地产按揭贷款业务风险管理,审慎推进资产证券化等六个方面得出了对中国的警示。     

Ecological services to and from rangelands of the United States

The over 300 million ha of public and private rangelands in the United States are characterized by low and variable precipitation, nutrient-poor soils, and high spatial and temporal variability in plant production. This land type has provided a variety of goods and services, with the provisioning of food and fiber dominating through much of the 20th century. More recently, food production from a rangeland-based livestock industry is often pressured for a variety of reasons, including poor economic returns, increased regulations, an aging rural population, and increasingly diverse interests of land owners. A shift to other provisioning, regulating, cultural, and supporting services is occurring with important implications for carbon sequestration, biodiversity, and conservation incentives. There are numerous goods and services possible from rangelands that can supply societal demands such as clean water and a safe food supply. The use of ecologically-based principles of land management remains at the core of the ability of private land owners and public land managers to provide these existing and emerging services. We suggest that expectations need to be based on a thorough understanding of the diverse potentials of these lands and their inherent limits. A critical provisioning service to rangelands will be management practices that either maintain ecological functions or that restore functions to systems that have been substantially degraded over past decades. With proper incentives and economic benefits, rangelands, in the U.S. or globally, can be expected to provide these historical and more unique goods and services in a sustainable fashion, albeit in different proportions than in the past.     

Modeling the dependence structure between default risk premium,equity return volatility and the jump risk: Evidence from a financial crisis

This paper investigates the dependence structure between default risk premium, equity return volatility and jump risk in the equity market before and during the subprime crisis. Using iTraxx CDS index spreads from Japanese and Australian markets, the paper models the different relationships that can exist in different ranges of behavior. We consider several Archimedean copula models with different tail dependence structures, namely, Gumbel, Clayton, Frank, AMH and Joe copulas. Although the dramatic change in the levels of the iTraxx CDS index, we find strong evidence that the dependence structure between CDS and stock market conditions is asymmetric and orienting toward the upper side. In addition, we find that the Japanese CDS market is more sensitive to the stock return volatility than the jump risk and the magnitude of this sensitivity is related to the market circumstances. However, Australian CDS market is more sensitive to the jump risk than stock return volatility before and during the financial crisis. This result has important implications for both global financial stability and default risk management. Specifically, the heterogeneity of markets, coupled with the diversity in the risk exposures cause the default risk premium and equity markets to exhibit different levels of sensitivity.     

A real-world analysis of healthcare costs and relative risk of hyperprolactinemia associated with antipsychotic treatments in the United States

Abstract

Aims: Antipsychotic medications are associated with an increased risk of hyperprolactinemia, but differ in their propensity to cause this complication. This study aimed to assess the economic burden of hyperprolactinemia, and to compare its risk among adult patients using atypical antipsychotics (AAs) with a mechanism of action associated with no/low vs high/moderate prolactin elevation.

Methods: This retrospective cohort study was based on US Commercial and Medicaid claims databases. Healthcare costs were compared between matched hyperprolactinemia and hyperprolactinemia-free cohorts using a two-part model. Risk of hyperprolactinemia was compared between patients receiving AAs with a mechanism of action associated with no/low (no/low prolactin elevation cohort) vs high/moderate prolactin elevation (high/moderate prolactin cohort) using logistic regression.

Results: In the commercially insured sample, compared to the hyperprolactinemia-free cohort (n?=?499), the hyperprolactinemia cohort (n?=?499) was associated with incremental total healthcare costs of $5,732 ($20,081 vs $14,349; p?=?.004), and incremental medical costs of $3,861 ($13,218 vs $9,357; p?=?.040), mainly driven by hyperprolactinemia-related costs. In the Medicaid-insured sample, compared to the hyperprolactinemia-free cohort, the hyperprolactinemia cohort was associated with incremental total healthcare costs of $10,773 ($30,763 vs $19,990; p?=?.004), and incremental medical costs of $9,246 ($20,859 vs $11,613; p?=?.004), mainly driven by hyperprolactinemia-related and mental health-related costs. The odds of hyperprolactinemia in the no/low prolactin elevation cohort were 4–5-times lower than that in the high/moderate prolactin elevation cohort (odds ratio =0.21; p?<?.001).

Limitations: Hyperprolactinemia may be under-reported in claims data.

Conclusions: Hyperprolactinemia is associated with substantial healthcare costs. AAs associated with no/low prolactin elevation reduce the risk of hyperprolactinemia by 4–5-times compared to AAs associated with moderate/high prolactin elevation. Treatment options with minimal impact on prolactin levels may contribute to reducing hyperprolactinemia burden in AA-treated patients.     

De-escalation from micafungin is a cost-effective alternative to traditional escalation from fluconazole in the treatment of patients with systemic Candida infections

Abstract

Background:

Systemic Candida infections (SCI) occur predominantly in intensive care unit patients and are a common cause of morbidity and mortality. Recently, changes in Candida epidemiology with an increasing prevalence of SCI caused by Candida non-albicans species have been reported. Resistance to fluconazole and azoles in general is not uncommon for non-albicans species. Despite guidelines recommending initial treatment with broad-spectrum antifungals such as echinocandins with subsequent switch to fluconazole if isolates are sensitive (de-escalation strategy), fluconazole is still the preferred first-line antifungal (escalation) in many clinical practice settings. After diagnosis of the pathogen, the initial therapy with fluconazole is switched to a broad-spectrum antifungal if a non-albicans is identified.

Methods:

The cost-effectiveness of initial treatment with micafungin (de-escalation) vs fluconazole (escalation) in patients with SCI was estimated using decision analysis based on clinical and microbiological data from pertinent studies. The model horizon was 42 days, and was extrapolated to cover a lifetime horizon. All costs were analyzed from the UK NHS perspective. Several assumptions were taken to address uncertainties; the limitations of these assumptions are discussed in the article.

Results:

In patients with fluconazole-resistant isolates, initial treatment with micafungin avoids 30% more deaths and successfully treats 23% more patients than initial treatment with fluconazole, with cost savings of £1621 per treated patient. In the overall SCI population, de-escalation results in 1.2% fewer deaths at a marginal cost of £740 per patient. Over a lifetime horizon, the incremental cost-effectiveness of de-escalation vs escalation was £15,522 per life-year and £25,673 per QALY.

Conclusions:

De-escalation from micafungin may improve clinical outcomes and overall survival, particularly among patients with fluconazole-resistant Candida strains. De-escalation from initial treatment with micafungin is a cost-effective alternative to escalation from a UK NHS perspective, with a differential cost per QALY below the ‘willingness-to-pay’ threshold of £30,000.     

Nexus between economic risk and political risk in the United Kingdom: Evidence from wavelet coherence and quantile-on-quantile approaches

This study examines the linkage between economic risk and political risk in the United Kingdom. This linkage has attracted the attention of policymakers; however, there is no consequence of the linkage in the existing literature. The study aims to close this gap for the UK case by applying wavelet coherence (WTC) and quantile-on-quantile regression (QQR) approaches and using quarterly data between 1984/Q1 and 2020/Q4. The results of the WTC reveal that there is time–frequency dependency between economic risk and political risk majorly in the medium and low frequencies. Moreover, the direction of the causality changes over time. Furthermore, the outcomes of the WTC show that economic risk leads political risk between 1995 and 2005, whereas political risk leads economic risk from 2006 to 2019. The outcomes of the QQR approach disclose that in the higher tail (0.7–0.95) of political risk and lower and medium tail (0.05–0.60) of economic risk, the effect of political risk on economic risk is positive and strong. On the flip side, at all quantiles (0.05–0.95) of economic risk and lower quantiles (0.10–0.30) of political risk, the effect of political risk on economic risk is positive and strong. The results are also validated by the outcomes of partial wavelet coherence, multiple wavelet coherence, and quantile regression. Hence, the results highlight the importance of political risk (economic risk) for economic risk (political risk) in the UK case.     

Explaining changes in the racial digital divide in the United States from 1997 to 2007

This paper explores the dissemination of access to home Internet among Whites and Blacks in the US, the inequalities observed between the groups (known as the digital divide), the trends exhibited by the two groups in the acquisition of Internet access, and the factors contributing to these disparities. The study focuses on the large and growing digital divide observed among Whites and Blacks in the period 1997–2007. Both the standard and a variant of the Blinder–Oaxaca decomposition techniques are employed to identify and quantify the factors that contribute to this gap. In all decompositions, differences in education, family income, household composition, and access to the Internet outside the home are found to be the primary factors that explain the racial digital gap.     

Remittances to Latin America from migrants in the United States: Assessing the impact of amnesty programs

The magnitude of remittance flows to Latin America exceeds the combined inflows of foreign direct investment and official development assistance to the region. Since the United States is the destination country of the vast majority of migrants from Mexico, as well as from other Latin American countries, U.S. immigration policy can have a significant impact on the volume of remittances to the Latin American region. This paper studies how a generalized amnesty — a provision in the 1986 Immigration Reform and Control Act (IRCA) — affected immigrants' remitting patterns. In models that control for immigrants' length of residence in the United States and for economic conditions in both the U.S. state of residence and the country of origin, we estimate substantial post-legalization drops in remittances sent home by Mexican-born migrants who legalized through IRCA. Given the potential positive impact of remittances on investment levels, entrepreneurship rates and the development of the financial sector, this finding underscores the importance of gaining a better understanding of the impact that immigration policies in immigrant-receiving countries may have on the stream of remittance flows to immigrant-sending communities in developing regions.     

Saving,Wealth and the Transition from Transfers to Individual Responsibility: The Cases of Taiwan and the United States*

Under the life‐cycle saving model, population aging leads to an increased demand for life‐cycle wealth. Changes in transfer systems create or destroy one component of life‐cycle wealth—transfer wealth. The decline in the familial transfer system in Taiwan and reform of the US Social Security system are two examples of ways that transfer wealth is reduced. The combined effects of aging and changes in transfer systems are analyzed using simulation analysis. Rapid aging and radical decline in transfer systems lead to a large but transitory surge in aggregate saving. Capital per worker increases rapidly and remains at a high level.