Apart from aggregate accounting of Singapores investment abroad, case studies on the performance of these investments in individual countries hardly exist. This paper is an attempt to compile such a study by focusing on Singapores investment in Sri Lanka. Singapore is one of the largest foreign...

Most studies of exchange rate exposure of stock returns do not address three relevant aspects simultaneously. They are, namely : sensitivity of stock returns to exchange rate changes; sensitivity of volatility of stock returns to volatility of changes in foreign exchange market; and the...

We use a mixed-frequency regression technique to develop a test for cointegration under the null of stationarity of the deviations from a long-run relationship. What is noteworthy about this MA unit root test, based on a variance-difference, is that, instead of having to deal with non-standard...

The instrumental variable (IV) estimator in a cross-sectional or panel regression model is often taken to provide valid causal inference from contemporaneous correlations. In this exercise we point out that the IV estimator, like the OLS estimator, cannot be used effectively for causal inference...

The link between mental stress and cancer is still a belief, not a well established scientific fact. Scientists have relied largely on opinions of cancer stricken patients to establish a link between stress and cancer. Such opinion surveys tend to produce contradictory statistical inferences....

The existing measures of housing affordability are essentially short-run indicators that compare current income with property prices. Taking into consideration that a housing purchase is a long-horizon decision and the property price reflects the discounted present value of future mortgage...

Temporal aggregation creates contemporaneous correlations, alters dynamic links and may distort causality inference. Since cointegration is invariant to temporal aggregation and implies Granger causality this paper presents a sign rule for causal inference and contemporaneous conditioning in...