Option overlay strategies

Option overlays on a rebalanced portfolio are designed. Inputs to the design problem are the physical and risk neutral probabilities at the option maturity. They are estimated from time series and option data, respectively. The objective for the design is the bid price of a two price economy modelled as a distorted expectation. The design is monotone increasing in the underlier with a delta constraint. The option positioning is implemented on the S&P 500 index, supposedly rebalanced every 21 days with option positions taken 10 days prior to a rebalance date with a maturity near two months. Option overlays are seen to raise performance measures and reduce drawdowns.     

Momentum and reversion in risk neutral martingale probabilities

A time homogeneous, purely discontinuous, parsimonous Markov martingale model is proposed for the risk neutral dynamics of equity forward prices. Transition probabilities are in the variance gamma class with spot dependent parameters. Markov chain approximations give access to option prices. The model is estimated on option prices across strike and maturity for five days at a time. Properties of the estimated processes are described via an analysis of return quantiles, momentum functions that measure the response of tail probabilities to such moves. Momentum and reversion are also addressed via the construction of reverse conditional expectations. Term structures for the moments of marginal distributions support a decay in skewness and excess kurtosis with maturity at rates slower than those implied by Lévy processes. Out of sample performance is additionally reported. It is observed that risk neutral dynamics by and large reflect the presence of momentum in numerous probabilities. However, there is some reversion in the upper quantiles of risk neutral return distributions.     

The Asian economy: current state of play and future prospects

The global financial crisis, the so-called great world recession and recovery have had a serious impact on the Asian and global economies. Together, they managed to engender significant transformation in the contours of both the Asian and global economies. For instance, Asian economies presently depend less on markets in the advanced industrial economies and, due to their enlarging markets, can and did make a substantive contribution to the global recovery. They spearheaded the economic recovery from the global financial crisis. The post-crisis Asian economy is the third pole of the global economy. Significantly, the emerging market economies of Asia did not magnify the external shock this time and performed more like the advanced industrial economies. After a robust recovery in 2010, growth became somewhat subdued in 2011. Projections show that economic performance in the region in 2012 will not be very different from that in 2011 (see WB [World Bank] 2012).     

Costa Rica

Costa Rica is often cited as a model for Central American economies because of its strong democratic institutions, political stability, and open economy. Foreign investment continues to play a pivotal role in fueling economic growth, particularly in the electronics, services, and medical components sectors. A strong record of social investments has resulted in a superior human resource base, a skilled labor pool, and preservation of its biodiversity. The recent formation of the Central American Free Trade Agreement (CAFTA) provides new opportunities for the country but has also increased the pressures for more openness and privatization, particularly in the telecommunications industry, provoking fresh internal debate about the balance between economic growth and preserving social institutional arrangements. © 2005 Wiley Periodicals, Inc.     

Pro-poor targeting and accountability of local governments in West Bengal

A commonly alleged pitfall of decentralization is that poverty, socio-economic inequality and lack of political competition allow local elites to capture local governments. This hypothesis is empirically examined using a longitudinal sample of 89 West Bengal villages concerning targeting of credit, agricultural input kits, employment programs and fiscal grants spanning the period 1978–98. Higher poverty, land inequality and low caste composition of the poor was associated with negligible adverse effects on targeting of private goods to the poor within villages, but with lower employment generation out of allotted funds, and significantly lower allocation of resources to the village as a whole. Political competition or literacy levels among the poor were not systematically related to targeting.     

RAPID GROWTH IN CHINA AND THE ASIAN ECONOMIES: SOME STYLISED FREE‐MARKET POLICY INFERENCES

The focus of this article is on the rapid growth of the Chinese economy and its ongoing interaction with the rest of Asia. It concludes that rapid growth in both Asia and China has resulted from free‐market‐oriented neoclassical economic policies and principles. Owing to its economy's size, its openness and the briskness of its GDP growth, China has influenced economies across the globe as well as the more proximate regional economy.     

Correlation and the pricing of risks

Given a pricing kernel we investigate the class of risks that are not priced by this kernel. Risks are random payoffs written on underlying uncertainties that may themselves either be random variables, processes, events or information filtrations. A risk is said to be not priced by a kernel if all derivatives on this risk always earn a zero excess return, or equivalently the derivatives may be priced without a change of measure. We say that such risks are not kernel priced. It is shown that reliance on direct correlation between the risk and the pricing kernel as an indicator for the kernel pricing of a risk can be misleading. Examples are given of risks that are uncorrelated with the pricing kernel but are kernel priced. These examples lead to new definitions for risks that are not kernel priced in correlation terms. Additionally we show that the pricing kernel itself viewed as a random variable is strongly negatively kernel priced implying in particular that all monotone increasing functions of the kernel receive a negative risk premium. Moreover the equivalence class of the kernel under increasing monotone transformations is unique in possessing this property.      

The Second Fundamental Theorem of Asset Pricing

This paper presents a resolution of the paradox proposed by the example of an economy with complette markets and a multiplicityof martingale measures constructed by Artzner and Heath (1995). The resolution lies in noting that completeness is with respect to a topology on the space of cash flows and is connected with uniqueness of the price functional in the topological dual space. Uniqueness may be lost outside the dual and this is what occurs in the counterexample of Artzner and Heath.     

China and India： An Era of Escalating Economic Interaction

I. Historic Cultural and Economic Relations China and India are both ancient civilizations, with histories stretching over 5000 years. Their mutual relations are also ancient. China and India have long-term intellectual and cultural ties, which historically fell in the domain of religious scholars. These strong ties date back to the first century AD when Buddhism spread from India to China. The history of Buddhism chronicles detailed accounts of religious and cultural bonds between the t…