Monica Giulietti

We don't need no education - Or do we? Management education and alumni adoption of strategy tools

Despite concerns about the relevance of management education, there is relatively little evidence about whether graduates use the management tools and concepts they are taught. We address this gap with evidence from a survey of business school alumni adoption of tools typically taught in strategic management courses. Our findings show that four educational characteristics—level of formal education, frequency of management training, specificity of strategic management education, and time elapsed since formal education—drive adoption of strategy tools. Specifically, features such as postgraduate over undergraduate qualifications and frequent exposure to management training predispose greater user of strategy tools. However, other factors, such as time elapsed since formal education, are not as great a predictor of variation in use. We conclude with a predictive model of the relative weight and importance of educational and demographic characteristics on strategy tool adoption and discuss our findings in light of the relevance debate.

Causality in crude oil prices

Crude oil markets witness growing disparity between the quality of crudes supplied and demanded in the market. The market share of low‐quality crudes is increasing due to the depletion of old fields and increasing demand. This is unnerving the practitioners and affecting the relevance of the traditional benchmark crudes due to the lack of lower quality benchmarks (Montepeque, 2005). In this article, we apply Granger causality tests to study the price dependence of 32 crudes in order to establish which crudes drive other prices and which ones simply follow general market trends. Our results indicate that some of the old benchmarks are still relevant while others can be disregarded. Our results also interestingly show that the low-quality Mediterranean Russian Urals crude, introduced in the late 1990s, has emerged recently as a significant driver of global prices.

Foreign direct investment in the UK: evidence from a disaggregated panel of the UK food sector

Most empirical studies of foreign direct investment (FDI) typically use either a cross-sectional (capturing ownership-specific and industry determinants) or time-series (capturing the determinants of FDI over time) approach. Panel data techniques, however, have the advantage of combining both aspects of the data. Using disaggregated panel data for the UK food sector – a leading recipient of FDI in the UK – the results in this paper highlight the predominance of ownership-specific and industry characteristics in determining the presence of foreign-owned firms in this sector while macro-economic factors have a more marginal effect.

Testing for stationarity in heterogeneous panel data in the presence of cross-section dependence

The panel variant of the KPSS tests developed by Hadri [Hadri, K., 2000, Testing for stationarity in heterogeneous panels. Econometrics Journal, 3, 148–161] for the null of stationarity suffers from size distortions in the presence of cross-section dependence. However, applying the bootstrap methodology, we find that these tests are approximately correctly sized.

Revenues from Storage in a Competitive Electricity Market: Empirical Evidence from Great Britain

Despite the high upfront financial costs associated with the existing technologies for energy storage they have become more appealing in recent years in response to the increasing importance of non-dispatchable sources of generation in the energy systems of developed countries. One of the essential pieces of information required to value the monetary benefits which can be achieved when investing in energy storage is the price that energy will command when it is released, compared with the price paid when injected into the storage. In this paper we investigate this relationship using time series statistical techniques for various maturities of forward prices, using data on assessments of power prices for future delivery. We will examine the relationship for predictability and size of gap in order to answer questions about the likely financial benefits which can be obtained from optimal time management of storage facilities, using a technology neutral approach. Our initial results indicate that such arbitrage opportunities exist for storage facilities, especially when energy is stored over a short-term period of a day or a week.

The timing of tariff structure changes in regulated industries: evidence from England and Wales

Abstract In this paper, we investigate the dynamic evolution of tariffs in telecommunications, gas, airports, electricity and water in England and Wales. We carry out a statistical analysis of the tariffs charged by the companies, which have been subject to a price-cap since privatisation. The period covered, between 1976 and 1998, allows us to investigate systematic changes in the tariff structure before and after privatisation. In all the industries, with the exception of gas, we identify changes in the tariff structure immediately before privatisation. Some limited evidence of changes in electricity and gas tariffs before the introduction of competition is also found.

The liberalisation of the internal market for electricity: what choices for Italy?

Abstract The most substantial changes and proposal for reform of the Italian electricity industry have been developed recently as a result of the need to transpose the EU directive on the liberalisation of the electricity market to the national level. Important reforms have been implemented in the recent law decree which transposes the EU directive. Several choices are still open for the government, the public incumbent, the regulatory and the antitrust authorities. We focus on the implications of the adoption of a double market system, of the liberalisation of the generation phase, and of the proposed reform of the tariff system.

Price Transmission in the EU Wholesale Petroleum Markets

This article employs nonlinear smooth transition models to analyze the relationship between upstream and midstream prices of petroleum products. We test for the presence of nonlinearities in price linkages using both weekly series constructed using official EU procedures and also daily industry series applied for the first time. Our results show that the estimated shape of the transition function and equilibrium reversion path depend on the frequency of the price dataset. Our analysis of the crude oil to wholesale price transmission provides evidence of nonlinearities when prices are observed with daily frequency. The nature of the nonlinearities provides evidence in support of the existence of menu costs or, more generally, frictions in the markets rather than supply adjustment costs. This result differs from that found for the U.S. petroleum markets.

A Rough Analysis: Valuing Gas Storage

This paper studies the impact of a fire in 2006 which removed the possibility of access to the Rough gas storage facilities covering over 80% of total UK storage, at a time when major withdrawals from storage would have likely taken place. Implicitly, it shows the value of such gas storage facilities, in a country with relatively little storage, where we might therefore see a considerable impact. We find that the major effect on activity was through an increased sensitivity of supply to prices and an increased variance in this sensitivity, not through non-price rationing.

New York mark-ups on petroleum products

In this paper we analyse rigidities in the behaviour of the mark-up on regular, midgrade and premium varieties of petrol in the New York area using a set of weekly frequency data and a methodology that analyses the pricing process using deterministic and stochastic techniques. The results are consistent across methodologies and indicate that the speeds of adjustment to the long-run equilibrium mark-up differ across varieties of petrol with margins of the premium variety falling faster than they rise, contrary to the popular claim of welfare-decreasing asymmetries in price transmission.