Flight Delays and Passenger Preferences: An Axiomatic Approach

The U.S. Department of Transportation (DOT) defines a flight as “delayed” if it arrives 15+ minutes late. The DOT “flight counting” delay definition is used to rank airline/airport service quality. An obvious caveat of counting flight delays is that the duration of delay plays no role in the delay count. The purpose of this article is to propose an aggregate delay measure that is sensitive to the distribution of time delayed among passengers. The importance of this work is that our derived delay measure reflects passenger preferences rather than the arbitrary delay cutoff established by the DOT. We model passengers' preference ordering using the criteria that passengers prefer fewer, shorter, and more equal delay times.     

Conditions for Optimality of a Currency Area

Two approaches to the theory of OCA are distinguished in this paper. The first, called the marginalistic approach, attempts to define the OCA from the point of view of a single country, and the second examines the optimality of a currency area of a given membership. The marginalistic approach and its limitations are discussed first. Then, the paper proceeds to the second approach which is discussed in the context of the cooperative game theory in characteristic function form; it argues that a currency area is optimal when the welfare functions of its constituent members are in the core. This implies that the welfare functions of all constituent members of the currency area are maximized and hence they are all better off with a common currency rather than with their own national currencies; hence, no member country has the intention to abandon the currency area. The paper concludes that the condition for the optimality of a currency area independently of the degree of economic similarity of its constituents requires that the characteristic function must exhibit non decreasing returns with respect to its size.     

Binding constraints to productive investment in Malawi: A modified HRV framework

The paper applies a modified Hausmann, Rodrik, and Velasco (HRV) growth diagnostics framework to analyse Malawi's growth challenges. The study finds five critical binding constraints affecting productive investment and output growth in Malawi. These include land administration, taxation, customs and trade regulations, political governance, and cost‐of‐finance. Land constraints are evidenced by highly urban and rural population growth, an inverse co‐movement between the rural population and investment per capita, and low land administration indices. Tax constraints are evidenced by the negative growth of investment per capita. Customs and trade regulations constraints are evidenced by nontariff measures, such as high costs and the time it takes to export and import. Political governance constraints are evidenced by rising government debt and the low score on transparency, accountability, and corruption based on the World Bank's Public Transparency Scale. Lastly, high cost‐of‐finance constraints are evidenced by monetary policy challenges, such as high real interest rates, inflation rate, uncompetitive exchange rate, and foreign aid ineffectiveness. Therefore, we recommend that the formulation of crucial policy strategies to alleviate these five significant binding constraints be encouraged. The government should base such an approach to sound growth therapeutics that fully account for each challenge's root causes.     

Why Do Property‐Liability Insurers Destroy Liquidity? Evidence from South Africa

This paper examines liquidity creation behaviour in the property‐liability insurance market in South Africa. Using annual data on 76 insurers from 2007 to 2014, the paper employs the three‐stage approach to estimate liquidity creation. The results suggest that property‐liability insurers are characterised by liquidity destruction by transforming liquid assets in cash and investable securities into illiquid reserves liabilities. The findings also indicate that the R1.32 billion in liquid assets were transformed into illiquid reserves liabilities in 2014, an increase from the R700 million liquidity de‐created in 2007. The increases were mainly driven by large insurers which accounted for about 70% liquidity de‐created. The results of panel regression analysis provide evidence in support of the “risk‐absorption” hypothesis which argues that high levels of capital increases liquidity creation. In addition, size, leverage and reinsurance were also identified as the firm‐level factors that explain liquidity creation. The policy implications of the findings are discussed.     

Supply‐leading versus Demand‐following Hypothesis: Empirical Evidence from Three SSA Countries

Abstract: This study investigates empirically the direction of causality between financial development and economic growth in three sub‐Saharan African countries — Kenya, South Africa and Tanzania. The study seeks to answer one critical question: Does financial development in sub‐Saharan African countries exhibit a supply‐leading or demand‐following response? Using three proxies of financial development against real GDP per capita (a proxy for economic growth), the study finds that the direction of causality between financial development and economic growth is sensitive to the choice of measurement for financial development. In addition, the strength and clarity of the causality evidence is found to vary from country to country and over time. On balance, a demand‐following response is found to be stronger in Kenya and South Africa, whilst in Tanzania a supply‐leading response is found to be dominant. The study therefore recommends that for Kenya and South Africa the real sector of the economy should be developed further in order to sustain the development of the financial sector. However, for Tanzania, there is need for further development of the financial sector in order to make the economy more monetized.     

Airline Schedule Recovery after Airport Closures: Empirical Evidence since September 11

Since the September 11, 2001, terrorist attacks, repeated airport closures due to security breaches have imposed substantial costs on travelers, airlines, and government agencies in terms of flight delays and cancellations. Using data from the year following September 11, this study examines how airlines recover flight schedules upon reopening of airports that have been closed for security reasons. As such, this is the first study to empirically examine service quality during irregular airport operations. Our results indicate that economic considerations, particularly the potential revenue per flight, have predictable effects on service quality following airport closures. Airport concentration, hub destination, and various logistical factors also significantly influence flight outcomes.     

Higher Education Funding

The expansion of higher education throughout the OECD—andbeyond—is both necessary and desirable. But it is costly,and faces competing imperatives for public spending. Highereducation finance is therefore salient to an extent that isnot yet fully appreciated in all countries, and is also immenselysensitive politically. This paper sets out the core lessonsfor financing higher education deriving from economic theoryand puts them alongside lessons from country experience. TheUK reforms announced in 2004 are assessed against the backdropof those two elements. A concluding section briefly maps outunfinished business.