Social and Behavioral Sciences Commons^™

Household Demand, Network Externality Effects And Intertemporal Price Discrimination, Winston T. H. Koh

Research Collection School Of Economics

This paper examines the optimality of intertemporal price discrimination when network externality effects are present in the consumption of a durable good. We conduct our study in two settings. In a model with two household types, utilities are dependent on the cumulative proportion of households that have purchased the durable good. Next, in a model with a continuum of household types, we extend the analysis to the case where households consume both a durable good and a stream of non-durable goods. We show that in both settings, the presence of network externalities facilitates a sales strategy with intertemporal price discrimination.

Some Patterns Of Market Shares Of Brands Within And Across Product Categories, Rajeev Kohli, Raaj Sah

Research Collection School Of Economics

This paper: (i) reports an empirical regularity in the market shares of brands; (ii) presents a theoretical framework for understanding the observed regularity; (iii) adduces additional empirical consequences of the framework, which are some counterintuitive relationships among market shares of brands across different product categories; and (iv) presents empirical evidence for these consequences, thus providing additional support for the theoretical framework. Our cross-sectional data on market shares consists of 1171 brands in 91 product categories of foods and sporting goods sold in the US. If we assign a lower rank to a brand with a higher market share, then the …

Competing At The Frontier: The Changing Role Of Technology Policy In Singapore's Economic Strategy, Winston T. H. Koh, Poh Kam Wong

Research Collection School Of Economics

For an economy competing at the global frontier, an innovation-based growth strategy requires a well-developed technological infrastructure, a set of capabilities-focused technology policies, as well as an institutional environment that stimulates innovation and entrepreneurship. This paper examines the role played by science and technology policy in an economy's transition to an innovation-based growth strategy. We discuss the challenges governments face as they restructure economic institutions to deepen R&D capabilities and encourage technology creation. We review Singapore's experience in this regard and assess its ongoing efforts to remake itself to compete at the global frontier.

Analysis Of Labor Participation Behavior Of Korean Women With Dynamic Probit And Conditional Logit, Myoung-Jae Lee, Yoon-Hee Tae

Research Collection School Of Economics

We analyse the dynamic labour participation behaviour of Korean women. State dependence under unobserved heterogeneity is considered, where the heterogeneity may be unrelated, pseudo-related, or arbitrarily related to regressors. Three minor methodological contributions are made: interaction terms with lagged response are allowed in dynamic conditional logit; a three-stage algorithm for dynamic probit is proposed; and treating the initial response as fixed is shown to be ill-advised. The state dependence is about 0.6 × SD(error), higher for the married or junior college-educated, and lower for women in their twenties and thirties. While education increases participation, college education has negative effects for …

Household Demand, Network Externality Effects And Intertemporal Price Discrimination, Winston T. H. Koh

Research Collection School Of Economics

This paper examines the optimality of intertemporal price discrimination when network externality effects are present in the consumption of a durable good. We conduct our study in two settings. In a model with two household types, utilities are dependent on the cumulative proportion of households that have purchased the durable good. Next, in a model with a continuum of household types, we extend the analysis to the case where households consume both a durable good and a stream of non-durable goods. We show that in both settings, the presence of network externalities facilitates a sales strategy with intertemporal price discrimination. …

Older Workers: Untapped Assets For Creating Value, Knowledge@Smu

Knowledge@SMU

The days when an executive could look forward to a leisurely retirement out on the golf course are over, thanks to a possible looming job shortage, a graying population, low savings rates and an insecure Social Security system. The impact of these factors on both workers and companies was the subject of the Symposium on Older Workers, co-sponsored recently by the AARP Global Aging Program along with Wharton's Center for Human Resources and Boettner Center for Pensions and Retirement Research. Speakers included AARP CEO William D. Novelli, Olivia Mitchell, executive director of Wharton's Pension Research Council, and Thomas Dowd, a …

Investing In Real Estate: Mortgage Financing Practices And Optimal Holding Period, Winston T. H. Koh, Edward H. K. Ng

Research Collection School Of Economics

Real estate investments are typically characterized by high degrees of leverage and long loan tenures. In perfect capital markets, leverage has no impact on the investment decision apart from tax considerations. However, the mortgage financing market is imperfect in many countries. In the presence of market imperfections, an optimal holding period exists for real property investments. We provide a simple rule to calculate the optimal holding period is to compare the required rate of return with the leveraged rate of return on equity.

Report Of The Committee On Fare Review Mechanism, Sock Yong Phang

Research Collection School Of Economics

Today, public transport fares are reviewed annually and adjustments, if any, are capped by the “CPI + X” formula, where CPI is the change in the Consumer Price Index over the previous year and X accounts for the net effect of wage changes after deducting productivity gains. For the period from 2001 to 2005, X was determined to be 1.5%. While this mechanism has worked well in keeping public transport fares affordable, the formula lacks transparency and is not easily understood by the general public. Commuters often question the need for the “X” element given that the public transport operators …

Analysis Of Job-Training Effects On Korean Women, Myoung-Jae Lee, S. J. Lee

Research Collection School Of Economics

We analyse job-training effects on Korean women for the period January 1999 to March 2000, using a large data set of size about 52,000. We employ a number of estimation techniques: Weibull MLE and accelerated failure time approach, which are both parametric; Cox partial likelihood estimator, which is semiparametric; and two pair-matching estimators, which are in essence nonparametric. All of these methods gave the common conclusion that job training for Korean women increased their unemployment duration. The trainings were not cost-effective in the sense that they took too much time 'locking in' the trainees during the training span, compared with …

An Analytical Framework Of Science Parks And Technology Districts With An Application To Singapore, Francis Koh, Winston T. H. Koh, Ted Feichin Tschang

Research Collection School Of Economics

This paper analyzes the question: What does it take for science parks and technology districts to evolve and grow? We propose an analytical framework to examine the gestation, evolution, and sustainability of science parks and related but broader regional phenomena such as technology districts. The framework comprises three aspects of a science park's development: growth mechanisms, level of technological capabilities, and nature of its integration with national or global markets. The main growth mechanisms we identify are government-led infrastructure provision, agglomeration effects, and continual self-renewal through the creation of new businesses. We apply this framework to analyze Singapore's science park …

A Bootstrap Test For Conditional Symmetry, Liangjun Su, Sainan Jin

Research Collection School Of Economics

This paper proposes a simple consistent non-parametric test of conditional symmetry based on the principle of characteristic functions. The test statistic is shown to be asymptotically normal under the null hypothesis of conditional symmetry and consistent against any conditional asymmetric distributions. We also study the power against local alternatives, propose a bootstrap version of the test, and conduct a small Monte Carlo simulation to evaluate the finite-sample performance of the test.

Future Job Prospects In Singapore, Hian Teck Hoon

Research Collection School Of Economics

No abstract provided.

The Creation And Economic Regulation Of Housing Markets: A Comparison Of The Experiences Of Singapore And Korea, Sock-Yong Phang

Research Collection School Of Economics

Privatization, creation of markets and economic regulation are terms that few would immediately associate with the housing sector. Mainstream housing markets in most of the free market economies of the developed world are regarded as competitive markets, with little need for economic regulation of the market. Regulations that attempt to control behavior directly are generally limited to policies relating to rent control, the provision of rental housing or rental allowances for lower income groups, as well as land use regulations and building controls.

The housing sectors of Singapore and Korea are highly unusual in the extent of government involvement and …

The Structuralist Perspective On Real Exchange Rate, Share Price Level And Employment Path: What Role Is Left For Money?, Edmund S. Phelps, Hian Teck Hoon, Gylfi Zoega

Research Collection School Of Economics

No abstract provided.

The Micro-Foundations Of Intertemporal Price Discrimination, Winston T. H. Koh

Research Collection School Of Economics

This paper investigates the optimality of intertemporal price discrimination for a durable-good monopoly in a model where infinitely-lived households face an intertemporal budget constraint, and consume both durable goods and non-durable goods. We prove that the optimal price of the durable good is not constant, and may decrease or increase over time. Some households may choose to purchase the durable good at a later date, and pay lower or higher prices, since the gain in discounted utility of consuming more of the non-durable good more than compensates for the loss in utility from delaying the consumption of the durable good.

A Subjective Approach To The Study Of Oligopolistic Party Systems, Riccardo Pelizzo

Research Collection School of Social Sciences

The purpose of this paper is to present a new theory of the cartel party. My argument is straightforward. Assuming that parties are the political analog of firms, that party systems are the political analog of markets, that the shares of the electorate are the political analog of the market shares that firms control, Western European party systems share with oligopolistic markets some structural features. Yet, to know whether Western European party systems resemble oligopolistic markets, we need to know whether Western European party systems are non-competitive political markets exactly in the same way in which oligopolistic markets are not …

Bank Lending And Real Estate In Asia: Market Optimism And Asset Bubbles, Winston T. H. Koh, Roberto S. Mariano, Andrey Pavlov, Sock-Yong Phang, Augustine H. H. Tan, Susan M. Wachter

Research Collection School Of Economics

This paper investigates the Asian real estate price run-up and collapse in the 1990s. We identify financial intermediaries’ underpricing of the put option imbedded in non-recourse mortgage loans as a potential cause for the observed price behavior. This underpricing is due to behavioral causes (lender optimism and disaster myopia) and/or rational response of lenders to market incentives (agency conflicts, deposit insurance, or limited liability of bank shareholders). The empirical evidence suggests that underpricing occurred in Thailand, Malaysia, and Indonesia. Consequently, these countries experienced a more severe market crash than Hong Kong and Singapore, where underpricing was kept under control by …

Future Job Prospects In Singapore, Hian Teck Hoon

Research Collection School Of Economics

What forces have shaped our nation’s employment and remuneration record so far? Where is Singapore’s unemployment rate headed? What should policy-makers do about it? These are the questions tackled in this paper.

Education, Technological Progress And Economic Growth, Winston T. H. Koh, Hing-Man Leung

Research Collection School Of Economics

An important role of education – and the resultant accumulation of human capital – for a less-developed economy is to facilitate technology diffusion in order for it to catch up with developed economies. This paper presents a model linking education, the accumulation of physical capital and technological progress. In the model, investment in education and the accumulation of physical capital are complementary, and intertwine with the technology progress through related effects on technology diffusion and the expansion of the technology frontier. The allocation of effort to education, the optimal savings rate and the technology gap are endogenously determined in the …

Comment: A Selective Overview Of Nonparametric Methods In Financial Econometrics, Peter C. B. Phillips, Jun Yu

Research Collection School Of Economics

These comments concentrate on two issues arising from Fan’s overview. The first concerns the importance of finite sample estimation bias relative to the specification and discretization biases that are emphasized in Fan’s discussion. Past research and simulations given here both reveal that finite sample effects can be more important than the other two effects when judged from either statistical or economic viewpoints. Second, we draw attention to a very different nonparametric technique that is based on computing an empirical version of the quadratic variation process. This technique is not mentioned by Fan but has many advantages and has accordingly attracted …

Effects Of Electronic Trading On The Hang Seng Index Futures Market, Joseph K. W. Fung, Donald Lien, Yiuman Tse, Yiu Kuen Tse

Research Collection School Of Economics

This investigation of the switch from open-outcry trading to electronic trading on the Hang Seng Index (HSI) futures contract reveals that the bid–ask spread narrows and the futures price plays more of a role in information transmission. Factors, such as anonymity in trading and fast order execution in electronic trading, attract informed traders to the futures market, enhancing the information flow. Our results provide support for the worldwide trend of transforming open-outcry markets into electronic trading platforms

Simultaneous Equations In Ordered Discrete Responses With Regressor-Dependent Thresholds, Myoung-Jae Lee, A. Kimhi

Research Collection School Of Economics

The parameters of ordered discrete response (ODR) models are identified only up to a positive scale. In this paper, we examine the identification issue for simultaneous equations with ODR, where the well-known identification problem in simultaneous equations of recovering structural-form parameters from reduced-form parameters is compounded with the ODR identification problem. We allow the thresholds in ODR to be regressor dependent as well as constant; the former is particularly challenging because threshold parameters get mixed with regression parameters, adding one more dimension to the identification problem. We also explore a cross-equation restriction on threshold differences, under which the structural form …