The contradictory roles of ambiguity for innovation in an industry: how beneficial are standardisation and classification?

Studies on the influence of ambiguity on innovation show inconsistent understandings: it could be beneficial owing to flexibility, while it might be detrimental owing to distraction of information. Faced with the contradictory understandings, this study examines whether technological standardisation and industry classification could increase innovations of an industry. Using ISO9001 and the SIC codes in Korea from 1998 to 2010, the empirical tests illustrate inverted U-shaped relationships between industry-level innovation and standardisation/classification. Therefore, it is suggested that a moderate degree of standardisation and classification provides a positive infrastructure for innovation by providing the necessary guidelines for a firm's behaviour as well as maintaining its flexibility.     

Optimal monetary policy in a small open economy with inflation and output persistence

We study optimal monetary policy for a small open economy in a model where both inflation and output show persistence. We incorporate habit formation into intertemporal consumption decision and modify the Calvo price setting to include indexation to past inflation. The message conveyed from this study can be viewed as twofold. First, full stabilization of domestic prices or the output gap is not optimal policy. This is because stabilization of the output gap leads to serial correlation in domestic inflation, whereas under full stabilization of domestic prices the output gap displays some serial correlation. It is, however, shown that at the zero inflation steady state, stabilizing domestic prices is equivalent to stabilizing the output gap. Second, in the presence of foreign income shock inflation and the output gap are more stable under flexible CPI inflation targeting than under other alternative policy regimes considered.     

Optimal retirement with unemployment risks

This paper investigates the optimal retirement of an individual in the presence of involuntary unemployment risks and borrowing constraints in a complete market with frictions. We use an intensity model and loading factors to illustrate the involuntary unemployment risks and frictions in unemployment insurance markets. Using reasonably calibrated parameters, we observe that high involuntary unemployment intensity and loading factors could be important explanations for the empirical findings emphasized in recent studies. We also find that an individual with high leisure demand after retirement reduces consumption during retirement and increases stockholdings as retirement time approaches.     

Fiscal policy in Korea: Before and after the financial crisis

This paper examines the role of fiscal policy in the Korean financial crisis and the subsequent recovery from it. We specifically address three questions: Was Korea’s fiscal policy prior to the crisis conservative, or were there large hidden contingent liabilities not captured in the official budget balance? What were the main characteristics of fiscal policy in stimulating and restructuring the economy under the IMF stabilization program in Korea? How effective were the financial guarantee and public investment programs as part of the counter-cyclical fiscal policy in the recovery process from the crisis? To address these questions, we re-estimate the consolidated budget deficits in Korea by incorporating the quasi-fiscal activities of public funds and public enterprises using their micro balance-sheet data from 1972 to 2003.     

A note on the spread between the rates of fixed and variable rate loans

An expression of the optimal expected spread between the rates of fixed and variable rate loans offered by a competitive risk-averse bank is derived. We find that the expected spread varies directly with the volatility of the funding cost, the bank's degree of risk aversion, and the competitive profit margin on variable rate loans. Our analysis also characterizes the optimal mix of fixed and variable rate lending in a bank's loan portfolio.     

Foreign institutional ownership and stock market liquidity: Evidence from Indonesia

From January 2002 to August 2007, foreign institutions held almost 70% of the free-float value of the Indonesian equity market, or 41% of the total market capitalization. Over the same period, liquidity on the Jakarta Stock Exchange improved substantially with the average bid–ask spread more than halved and the average depth more than doubled. In this study we examine the Granger causality between foreign institutional ownership and liquidity, while controlling for persistence in foreign ownership and liquidity measures. We find that foreign holdings have a negative impact on future liquidity: a 10% increase in foreign institutional ownership in the current month is associated with approximately 2% increase in the bid–ask spread, 3% decrease in depth, and 4% rise in price sensitivity in the next month, challenging the view that foreign institutions enhance liquidity in small emerging markets. Our findings are consistent with the negative liquidity impact of institutional investor ownership in developed markets.     

Revenue-sharing contracts across an extended supply chain

Revenue-sharing contracts have been heavily researched and promoted in the academic literature. However, despite some well-documented examples (e.g., the way Blockbuster and film studios were able to increase availability of the latest video releases in rental shops through a revenue-sharing contract), they seem to be much less prevalent in practice. A possible reason for this gap between theory and practice is that most academic research has focused on two-party contracts involving only one buyer and one supplier, while in reality, most supply chains consist of multiple stages. When there are several stages in the chain—as is the case for many extended, global supply chains—the traditional revenue-sharing contract is no longer optimal for the two contracting parties, as every other participant in the chain is able to leverage the revenue-sharing contract to its own advantage. Put another way, a revenue-sharing contract between only two parties is not incentive-compatible across all participants. Accordingly, we suggest that a revenue-sharing contract should involve all the supply chain partners, and propose a spanning revenue-sharing contract that accomplishes coordination and incentive-compatibility across the same.     

The equilibrium price of futures contracts: A result drawn from capital asset pricing model

A recent study shows that separation theorems in the stock and forward market literatures may not hold in an integrated financial market; therefore, the securities market may influence futures trading. This article investigates the securities market influence on the futures price. The result shows that although the futures price incorporates the investor's expectation about the future spot price, it generally is not a best estimate of the spot price. In addition, it is shown that the speculative activity can destabilize the cash market for some commodities, if initially, the underlying cash price is highly volatile.     

Developing an effective deep support network for individual investors

Providing investment research to meet the needs of the growing number of individual retail investors is an important opportunity. The broad variation in current stock research performance challenges investors to evaluate and select stock research. Evaluating stock research is difficult because developing stock research is a difficult and complex task. The research is largely an expression of the tacit knowledge of the analysts. This paper presents the concept, an effective deep support network to aid investors. An effective deep support network provides appropriate information from various providers that can be customisable and empowering to the individual investors. It allows them to incorporate their own judgment and to learn through experience. By meeting the real needs of retail investors, an effective deep support network could provide a competitive advantage for firms in financial services especially stock research firms.