Liberalization and changing spatial configurations in Nigeria’s domestic air transport network

In realization of the increasingly important role played by air transport, the Nigerian government followed the global trend of deregulation in reforming its domestic airline industry in 1985. Some of the effects of deregulation have been consistent with observed trends in other countries but others have been quite different. The abandonment of less profitable routes in the short term as well as the unfolding core-periphery structures following the emergence and dominance of certain core control centers replicates what obtained in the United States. However, evidence from literature suggesting that liberalization in practice has often resulted in the rising concentration of connectivity in a limited number of nodes and links rather than in its dispersal over the network at large does not hold yet in Nigeria’s domestic air network. This paper shows that the shifting balance between concentration and dispersal in Nigeria’s domestic network is generally skewed towards dispersal. Passenger traffic is more dispersed among nodes as gleaned from diminishing standard deviation values with increasing number of nodes. Generally speaking, overall connectivity also tends towards more evenness in the network since deregulation.     

Transferring Ownership-specific Advantages to a Joint Venture in China

In 1994, a Sino-Italian joint venture was established in Foshan (China) to manufacture and sell motorcycles. The Italian parent company perceived important ownership-specific advantages in investing directly in China. These included its state-of-the-art production process, its marketing and distribution network, and its organizational and work concept. Indeed, it was intended to virtually ‘replicate’ these features of the parent company in China. This study explores problems experienced in attempting to reproduce these features of the parent company's European operation during the start-up phase of its Chinese affiliate. One problem was that core suppliers were reluctant to relocate part of their operations to China, making it difficult for the parent company to ‘replicate’ its production process abroad. There were also major difficulties in transferring the principles of its marketing and distribution network and its organization structure and work concept to China. While it is possible that many of these preliminary problems would be overcome and the parent company would realize its vision for its Chinese affiliate over time, this case-study not only highlights the complexity of harnessing ownership-specific advantages of foreign direct investment (FDI) in China, but also raises important issues about the expansion of FDI from low technology to medium technology enterprises in the circumstances prevailing in China.     

Realizing smiles: Options pricing with realized volatility

We develop a discrete-time stochastic volatility option pricing model exploiting the information contained in the Realized Volatility (RV), which is used as a proxy of the unobservable log-return volatility. We model the RV dynamics by a simple and effective long-memory process, whose parameters can be easily estimated using historical data. Assuming an exponentially affine stochastic discount factor, we obtain a fully analytic change of measure. An empirical analysis of Standard and Poor's 500 index options illustrates that our model outperforms competing time-varying and stochastic volatility option pricing models.     

The law and economics of self-dealing

We present a new measure of legal protection of minority shareholders against expropriation by corporate insiders: the anti-self-dealing index. Assembled with the help of Lex Mundi law firms, the index is calculated for 72 countries based on legal rules prevailing in 2003, and focuses on private enforcement mechanisms, such as disclosure, approval, and litigation, that govern a specific self-dealing transaction. This theoretically grounded index predicts a variety of stock market outcomes, and generally works better than the previously introduced index of anti-director rights.