Combining Sources of Preference Data for Modeling Complex Decision Processes

We review current state-of-the-art practices for combining preference data from multiple sources and discuss future research possibilities. A central theme is that any one data source (e.g., a scanner panel source) is often insufficient to support tests of complex theories of choice and decision making. Hence, analysts may need to embrace a wider variety of data types and measurement tools than traditionally have been considered in applied decision making and choice research. We discuss the viability of preference-stationarity assumptions usually made when pooling data, as well as random-utility theory-based approaches for combining data sources. We also discuss types of models and data sources likely to be required to make inferences about and estimate models that describe choice dynamics. The latter discussion is speculative insofar as the body of literature on this topic is small.     

Currency Prices, the Nominal Exchange Rate, and Security Prices in a Two‐Country Dynamic Monetary Equilibrium

This paper examines a continuous‐time two‐country dynamic monetary equilibrium in which countries with possibly heterogeneous tastes and endowments hold their own money for the purpose of transaction services formulated via money in the utility function. Given a price system, no‐arbitrage pricing results are provided for the price of each money and the nominal exchange rate. Characterizations are provided for equilibrium prices for general time‐additive preferences and non‐Markovian exogenous processes. Under a Markovian structure of model primitives, the currency prices are shown to solve a bivariate system of partial differential equations. Assuming that each country is endowed with heterogeneous separable power utility and the exogenous quantities all follow geometric Brownian motions, an equilibrium is shown to exist and additional characterization is provided. A further example of nonseparable Cobb–Douglas preferences is investigated. The additional features over the customary environment of homogeneous logarithmic preferences are emphasized.     

From promise to performance

Book reviewed in this article:
Bauman, Robert P., Jackson, Peter and Lawrence, Joanne T. From Promise to Performance: A Journey of Transformation at SmithKline Beecham     

Your Call: eBay and Demand for the iPhone 4☆

The iPhone 4 was introduced into the UK market on 24^th June 2010 to significant consumer interest. Demand revealed itself exceeding supply through conventional channels, since there was very extensive activity in terms of bidding on eBay auctions for the product. We monitored all UK eBay transactions on the iPhone 4 for six weeks from introduction, with total transactions amounting to around £1.5m. We analyse determinants of winning bids in terms of characteristics of the phone, the seller, and the buyer. Our most notable and novel finding relative to previous studies is a very significant premium over list price being paid in almost all cases, with positive uplift factors including whether the phone was unlocked and whether it could be sold overseas. Demand fell over time, as evidenced by lower achieved prices, but the fall in price was relatively modest. A significant premium of 32GB over 16GB versions is revealed.     

Optimization Modeling for Logistics: Options and Implementations

Logistics optimization has significantly grown in popularity over the last few decades. Improvements in computing power, modeling software, and the willingness of companies to invest time in the modeling effort have allowed models that were once too unwieldy to solve to optimality to be solved quickly. This has led to a more wide‐spread recognition by logistics managers of the potential advantages of using optimization. The scope of logistics optimization in companies and organizations has expanded to address strategic, tactical, operational, and collaborative decision making. Spreadsheets, an analytical tool familiar to managers, have played a crucial role in the expanded modeling efforts of companies. Although optimization’s role in logistics has grown tremendously, there still are areas that remain to be explored that will allow it to achieve an even larger and more successful role in the management of companies. Additionally, there are some models that are still too large or too complex to currently solve to optimality, despite the advances in computing power and modeling/solving software.     

Code of ethics quality: an international comparison of corporate staff support and regulation in Australia,Canada and the United States

The objective of this paper is to examine the ‘Code of Ethics Quality’ (CEQ) in the largest companies of Australia, Canada and the United States. For this purpose, a proposed CEQ construct has been applied. It appears from the empirical findings that while Australia, Canada and the United States are extremely similar in their economic and social development, there may well be distinct cultural mores and issues that are forming their business ethics practices. A research implication derived from the performed research is that the construct provides a selection of observable and measurable elements in the context of CEQ. The construct of CEQ consists of nine measures divided into two dimensions (i.e. staff support and regulation). They should not be seen as a complete list. On the contrary, it is encouraged that others propose and elaborate revisions and extensions. A practical implication of this paper is a structure of what and how to examine the CEQ in a managerial setting. It may assist companies in their efforts to establish, maintain and improve their ethical culture, norms and beliefs within the organization and supporting them in their ethical business practices with different stakeholders in the marketplace and society. The dimensions and measures of the construct may be used as a frame of reference for further research. They may be useful and applicable across contexts and over time using similar samples when it comes to large companies, as small‐ or medium‐sized ones may not have considered all areas nor have the elements in place. This is a research limitation, but it provides an opportunity for further research.     

Neither bad apple nor bad barrel: how the societal context impacts unethical behavior in organizations

Every time another corporate scandal captures media headlines, the ‘bad apple vs. bad barrel’ discussion starts anew. Yet this debate overlooks the influence of the broader societal context on organizational behavior. In this article, we argue that misbehaviors of organizations (the ‘barrels’) and their members (the ‘apples’) cannot be addressed properly without a clear understanding of their broader context (the ‘larder’). Whereas previously, a strong societal framework dampened the practical application of the Homo economicus concept (business actors as perfectly rational and egocentric utility‐maximizing agents without any moral concern), specialization, individualization and globalization led to a business world disembedded from broader societal norms. This emancipated business world promotes a literal interpretation of Homo economicus among business organizations and their members. Consequently, we argue that the first step toward ‘healthier’ apples and barrels is to sanitize the larder, that is, adapt the framework in which organizations and their members evolve.     

Release the constraints: Solving the problems of export financing in troublesome times

Export growth is seen by governments as being a key to economic recovery. In the United States, the Obama Administration pledged to double exports by the year 2015. To gain greater insights into exporting as an engine for growth, we look to export lenders to understand the contextual changes in export lending, as well as priorities in evaluating exporters. Findings from a study of export lenders on the lender referral list of the Export-Import Bank of the United States suggest that changes in the financial industry's structure over the last two decades, coupled with the economic recession, have motivated policy—at both the lending firm and governmental level—that hampers the ability of exporting to contribute to economic recovery. Further, the findings suggest that current lender policy encourages a focus on short-term returns rather than an exporter's long-term strategic position in the market. Lender preferences, in addition to governmental policies increasing regulation of the financial sector, place significant constraints on economic recovery. Thus, we call for key lender and governmental policy changes that could release industry constraints and unleash the export engine for economic recovery.     

Evasion behaviors of exporters and importers: Evidence from the U.S.–China trade data discrepancy

Since the late 1990s, reported U.S. imports from China and Hong Kong have regularly and increasingly exceeded reported exports of China and Hong Kong to the United States. This discrepancy, which is not caused by re-exporting through Hong Kong, varies by product categories, and in some cases takes the opposite sign. In this paper, we focus on China's direct exports to the United States. Using a model that allows for simultaneous misreporting to two authorities, we find strong statistical evidence of under-reporting exports at the Chinese border to avoid paying value-added tax (VAT). The value of VAT avoided is estimated at $6.5 billion during 2002–2008, and the associated understatements account for approximately two-thirds of the discrepancy. We also provide evidence of tariff evasion at the U.S. border, in particular for related-party transactions, and indirect evidence of transfer pricing and evasion of Chinese capital controls. An estimated $2 billion of U.S. tariff revenue is lost due to such evasion during 2002–2008, which reduces the apparent size of the statistical discrepancy.     

Funktionswandel der EZB?

Die Kernaufgabe der Europ?ischen Zentralbank ist es, die Preisstabilit?t zu gew?hrleisten. Die Finanz- und Staatsschuldenkrise hat der EZB die Rolle aufgezwungen, durch Notma?nahmen die Stabilit?t der W?hrungsunion zu sichern. Ihre Unabh?ngigkeit wird zunehmend dadurch gef?hrdet, dass es in diesem Prozess zu einer Verquickung von Fiskal- und Geldpolitik kommt. W ünschenswert w?re eine Rückkehr der EZB zu ihrer alten Rolle und eine Strategie, die für einen Abbau der weltweiten und europ?ischen Ungleichgewichte sorgen k?nnte.