We consider complexity penalization methods for model selection. These methods aim to choose a model to optimally trade off estimation and approximation errors by minimizing the sum of an empirical risk term and a complexity penalty. It is well known that if we use a bound on the maximal...

Academicians and practitioners are becoming increasingly interested inthe economics of Information Technology (IT). In part, this intereststems from the increased role that IT now plays in the strategicthinking of most large organizations, and from the significant dollarcosts expended by these...

Retail centres are a visible sign of developed capitalist societies and make an appreciable contribution to these economies. For the firms involved in supplying air conditioning maintenance to retail centres, governance structures (that incorporate the make-or-buy decision and the decision...

If transitory profitable trading opportunities exist, filter rules are used in practice to mitigate transaction costs. The filter size is difficult to determine a priori. Our paper uses a dynamic programming framework to design a filter that is optimal in the sense of maximizing expected returns...

Traditionally, retail travel agencies have acted as intermediaries between primary creators/suppliers of travel products and the consumer, largely as a function of taking upon themselves the transaction costs for the consumer to find and select appropriate travel facilitators. Internet-related...

The work presented here is part of a wider research programme oriented around three specific questions. First, how do individual agents appropriate returns from innovation and how is this affected by the availability (or not) of intellectual property rights such as copyrights and patents?...

As the process of globalisation of the world economy progresses, the degree of international competition among enterprises increases as well. Yet not all industries or branches are affected to the same extent by this development. One of the most important factors which determine the degree of...

The globalisation of the world economy increases international competition among companies. However, not all industries will be affected by the same extent. The degree of globalisation of an industry will be particularly influenced by the level of transaction costs. Low transaction costs will...

Most markets have evolved as buyers and sellers constantly search for ways to create value, however this has not occurred naturally in all areas of the economy – markets are missing for some goods, including the environment. In such cases, transaction costs linked to property rights, asymmetric...

This paper presents an analysis of agricultural contracts using a transaction costs approach. We contend that in a context of modern agriculture, with well defined property rights, agricultural contracts must balance costs and benefits, aligning tenant and landlord incentives towards a similar...