Nonparametric analysis of financial time series by the Kernel methodology

This paper aims to study, in the most recent historical time period, the efficiency of the Paris Stock Exchange market. We test its weak form while analysing the stock exchange returns series by nonparametric methods, using kernel methodology in particular. In doing so, our approach extends the traditional view treating the observed cyclical fluctuations on this market.     

Robust calibration and arbitrage-free interpolation of SSVI slices

Decisions in Economics and Finance - We describe a robust calibration algorithm of a set of SSVI maturity slices (i.e., a set of 3 SSVI parameters $$\theta _t, \rho _t, \varphi _t$$...     

Exploiting the Chaos: Terrorist Target Choice Following Natural Disasters

This article explores the differences between transnational and domestic terrorism, further differentiating by private versus government targets, to estimate the effect of exogenous catastrophic shocks on a country's level of domestic and transnational terrorism. The empirical analysis uses detailed data on terrorism, natural disasters, and other relevant controls for 176 countries from 1970–2007 to illuminate several key disparities in a postdisaster target choice of terrorists. The results indicate that natural disasters incite both transnational and domestic terrorism; however, evidence is found for dissimilar motivations between the two. While both types of terrorism increase after disasters, transnational attacks against the government increase immediately following the disaster, suggesting an impetus to exploit weakened “hard” targets during the chaos. Conversely, domestic terrorism against the government takes longer to manifest, suggesting a period of time for which the public recovers and assesses the government's response.     

Is ex‐ante ex‐post analysis irrelevant to Keynes's theory of employment?

Ex‐ante ex‐post analysis has become a standard tool in macroeconomics. Yet Keynes dismissed it. We argue that Keynes's dismissal of ex‐ante ex‐post analysis is not an oddity but an indication of the originality of his theory of employment compared to standard macroeconomics. First, the principle of effective demand does not amount to a process that determines employment and income at the point of intersection of the traditionally defined ex ante supply and demand functions. Second, the finance motive allowed Keynes to confirm the identity of aggregate supply and demand already asserted in The General Theory. This latter conclusion is puzzling, however, since the principle of effective demand presupposes the possibility of a discrepancy between supply and demand. We suggest that Keynes's theory of employment is linked to a theory of income distribution whereby profits are a redistributed share of factor income which is transferred to firms when prices exceed factor costs. The identity and the equilibrium condition then relate to separate measurements of income and output, factor cost and prices.     

Fare elasticities of demand for direct and indirect flights in sub-Saharan Africa

This article examines the different demands for direct and indirect flights within sub-Saharan Africa. It develops both a simple reduced form model and a more refined two equation simultaneously system to examine bookings and fares on the major air transportation corridors. Using panel data, this allows estimation of the different fare elasticities of demand for direct and indirect services between the continents’ major cities as well as assessing the respective merits of the two models used.     

The long-run impact of human capital on innovation and economic development in the regions of Europe

ABSTRACT

Human capital is supposed to be an important factor for innovation and economic development. However, the long-run impact of human capital on current innovation and economic development is still a black box, in particular at the regional level. Therefore, this paper makes the link between the past and the present. Using a large new dataset on regional human capital and other factors in the 19^th and 20^th century, we find that past regional human capital is a key factor explaining current regional disparities in innovation and economic development.     

Stock price informativeness and analyst coverage

We examine whether more analyst coverage translates into more informative stock prices and apply this to both developed and emerging markets. We measure price informativeness using the association between current stock returns and future earnings. We argue that more informative stock prices contain more information about future earnings. Results indicate that analysts' activities do not contribute to the impounding of future earnings information into current stock prices, in accordance with the view that analysts are outsiders who do not have full access to firm‐level information. We also find that analysts specialize according to industry and that “industry expertise” is limited to developed countries. Overall, our evidence is consistent with the explanation that analysts focus on gathering and mapping industry‐ and market‐level information (macroeconomic information) into stock prices. Copyright © 2013 ASAC. Published by John Wiley & Sons, Ltd.     

Demographic volatility and economic growth: convention and beyond

Following the success of endogenous growth theory, recent empirical examinations of the demography–economic growth construct established that components of demographic change can provide meaningful and clear insights into the direction and impact of demographic variation in economic growth. While theoretical justification and empirical support to the claim cannot be denied, confusions seem to have arisen whether an empirical growth construct will only be limited to demographic dynamics or the model can entertain other non-demographic variables. In a leading research, Kelley and Schmidt (1995, 2001) provided seemingly ambiguous evidence that addition of non-demographic variables can add explanatory power to the growth regression. While subsequent empirical growth models have largely followed the convention as in KS, some important considerations like the stochastic effects of demographic system on economic growth seem to be missing. This paper attempts to address the concerns by suggesting a long-memory demographic system and embedding stochastic demographic characteristics in a standard Solow–Swan model, which also forms the basis of convergence pattern. We empirically show that significant stochastic shocks exist in the demographic components which could have contributed to the growth volatility across nations. We suggest that empirical growth models should account for stochastic demographic characteristics to enable economic policy makers with correct information about the current and future state of evolution of the demography–economic system.