Foreign dependence of individual stock prices: The role of aggregate product market developments

In this paper, we analyze the role of aggregate variables in the transmission from international stock price developments to individual domestic stock prices in a small open stock market. In particular, a theoretical and econometric model is used to determine whether international aggregate product market developments explain observed differences in foreign dependence among individual Belgian stocks. The results suggest that, except for the stocks of some internationally oriented companies, expected international production is not the most important explanatory variable and that an estimation model of aggregate fundamentals explains only part of individual stock price adjustments.     

On the socially optimal size of a life-saving facility

The paper examines the simultaneous problem of finding an optimal size of an intensive care unit and an optimal amount of social investment in preventive medicine. The “demand” for ICU services is assumed stochastic. The approach used is to minimize social costs involved in operating the facility and social loss stemming from deaths of untreated patients.

After deriving the optimality conditions the results are applied to recent British data     

The ATO Longitudinal Information Files (ALife): A New Resource for Retirement Policy Research

The Australian Taxation Office release of annual longitudinally linked individual tax and superannuation records, known as the ATO Longitudinal Information Files (ALife), opens up opportunities for new research. In this study, we provide an overview of ALife, focusing on its use for retirement income research. To this end, we provide the first longitudinal estimates of superannuation outcomes for 1-year birth cohorts. Results show marked increase in disparity of super balances in the lead-up to retirement as those in the top quartile ramp-up their contributions, possibly to take advantage of the favourable tax treatment of superannuation income in retirement years.     

ACCOUNTING FOR THE PUBLIC SECTOR IN DEVELOPMENT PLANNING

This paper seeks to set out in some detail an accounting structure for the public sector of developing countries which will provide the information essential for development planning. The public sector is of course of special importance in planning because of its sheer size and its pivotal position for altering the contours of the entire economy. Yet the information available for this strategic area often falls far short of what is needed, and also of what could be provided with more effort.
The paper is divided into a number of sections, the first two of which are concerned with demarcating the public sector and with the nature of the accounting framework proposed. These are followed by sections dealing with the distinction between development and other expenditures; the need for separate financial information; public enterprises; the grouping of expenditures according to the purposes served; and income distribution. A final section touches briefly on some of the data problems involved in implementing the system. In addition, a full set of accounts for the public sector and its components is appended.     

Input Hedging,Output Hedging,and Market Power

We argue that commodity input hedging is different from commodity output hedging. Output hedging can be detrimental to “sector play.” Furthermore, firms with market power that hedge outputs have incentives to over‐produce and distort market prices. In rational markets, such hedging will be expensive and we expect to see a negative relationship between hedging and market power in “output industries” but not in “input industries.” We test these predictions on a sample of S&P500 firms from 2001 to 2005. Our results support both hypotheses. Placebo tests show that the same empirical regularities do not apply to currency hedging. Finally, our empirical framework, which differentiates between hedging inputs and hedging outputs, can also help in reconciling conflicting results in prior studies.     

The Influence of CEOs' Visionary Innovation Leadership on the Performance of High‐Technology Ventures: The Mediating Roles of Connectivity and Knowledge Integration

Senior leaders play an essential role in facilitating knowledge creation processes and driving firms' innovation performance. However, little is known about the underlying relational mechanisms by which CEOs help build knowledge integration capability and drive firm innovation. We developed and tested a conceptual model about the ways in which CEOs shape a context conducive for knowledge creation processes and drive multiple innovation performance. A field, survey‐based, study among small‐ to medium‐sized technological ventures (SMVs) showed that CEO visionary innovation leadership (manifested by both vision for innovation and enactment of the vision through specific leadership behaviors) was positively related to a context of connectivity. Connectivity was related to firm knowledge integration capacity, which in turn resulted in enhanced firm innovation (new product quality, development speed, and product innovation). The findings also indicate direct links between CEO visionary innovation leadership and knowledge integration, and between connectivity and product innovation. Implications for theory and practice are discussed.     

The child health effects of terrorism: evidence from the Boko Haram Insurgency in Nigeria

This study examines the effect of terrorism on height-for-age z-scores, weight-for-age z-scores, weight-for-height z-scores, stunting, and wasting. Using the Boko Haram Insurgency, it compares outcomes in Boko Haram high-active and low-active areas. A difference-in-difference and regression model identifies the extensive and intensive margin effects respectively. The study uses data from the Nigeria Demographic and Health Survey and the Global Terrorism Database. The results suggest that the Boko Haram Insurgency reduces weight-for-age and weight-for-height z-scores and increases the probability of wasting. The evidence suggests that policies targeting healthcare services may mitigate the long-term impacts of the Boko Haram Insurgency on human capital production.     

The role of public intervention in R & D

The purpose of this paper is threefold: (1) we emphasize the rule of uncertainty in achieving an efficient allocation of resources to R & D activities; (2) we identify and discuss optional mechanisms that are directed at minimizing the role of uncertainty in determining R & D decisions; and (3) we analyze the role of public intervention in R & D via a formal structure. More specifically, we explain why and under what conditions a risk-averse decision-maker will invest less than a government in research and inventive activities. Sufficient conditions that lead to private underinvestment in these activities are established. Furthermore, if the option of buying information exists, then we identify a set of private governmental contracts that may lead to the acceptance of a research project that a priori is unfeasible.     

A note on Model Reference Adaptive System (MRAS) estimate with infinite variance

This paper discusses the estimation of a parameter in an autoregressive model with infinite variance. A recursive estimation procedure based on minimizing the prediction errors is provided. It is also shown that the model reference adaptive system estimate for an AR (1) model given in Aase (1983) is a special case.