Economics Commons^™

Urban Rail Transit Ppps: Lessons From East Asian Cities, Zheng Chang, Sock Yong Phang

Research Collection School Of Economics

Private sector participation in urban rail transit has proliferated in the past two decades. The large metropolises of East Asia have had decades of experience with private sector participation in the provision of heavy metro services. The design of these public–private partnerships (PPP) are varied. The diverse experiences of Tokyo, Hong Kong, Singapore and Beijing contain valuable lessons for other cities. Using a case study approach, this paper discusses three features of urban rail transitdevelopments in the context of East Asian cities, viz., farebox recovery, land value capture mechanisms, and vertical structure of the industry. Super vertical integration between rail …

The Role Of Macroeconomic, Policy, And Forecaster Uncertainty In Forecast Dispersion, You Li, Anthony S. Tay

Research Collection School Of Economics

We explore the role of uncertainty in explaining dispersion in professional forecasters’ density forecasts of real output growth and inflation. We consider three separate notions of uncertainty: general macroeconomic uncertainty (the fact that macroeconomic variables are easier to forecast at some times than at others), policy uncertainty, and forecaster uncertainty. We find that dispersion in individual density forecasts is related to overall macroeconomic uncertainty and policy uncertainty, while forecaster uncertainty (which we define as the average in the uncertainty expressed by individual forecasters) appears to have little role in forecast dispersion.

Does "America First" Help America? The Impact Of Country Image On Exports And Welfare, Pao-Li Chang, Tomoki Fujii, Wei Jin

Research Collection School Of Economics

This paper estimates the effects of bilateral and time-varying preference bias on trade flows and welfare. We use a unique dataset from the BBC World Opinion Poll that surveys (annually during 2005-2017 with some gaps) the populations from a wide array of countries on their views of whether an evaluated country is having a mainly positive or negative influence in the world. We identify the effects on bilateral preference parameters due to shifts in these country image perceptions, and quantify their general equilibrium effects on bilateral exports and welfare (each time for an evaluated exporting country, assuming that the exporting …

Permanent Price Impact Asymmetry Of Trades With Institutional Constraints, Chiraphol N. Chiyachantana, Pankaj Jain, Christine Jiang, Vivek Sharma

Research Collection Lee Kong Chian School Of Business

Dynamic institutional trading constraints related to capital, diversification, and short-selling asymmetrically affect the incorporation of new information as reflected in the permanent price impact of their trades. The sign of the permanent price impact asymmetry between institutional buys versus sells is positive at the initial stage of a price run-up and reverses due to changing constraints with a prolonged price run-up in a stock. Idiosyncratic volatility, analyst forecast dispersion, trading intensity, price dispersion, and bullish market conditions further sharpen the initial asymmetry, as well as its reversal after a price run-up.

The Flow Of Funds In Asean, Philip C. Zerrillo

Research Collection Lee Kong Chian School Of Business

In his novel, Memoirs of a Geisha, Arthur Golden wrote, “Water can carve its way even through stone. And when trapped, water makes a new path.” Something similar seems to be happening with the flow of funds in ASEAN.

Volatility Spillovers And Linkages In Asian Stock Markets, Hwee Kwan Chow-Tan

Research Collection School Of Economics

Diebold-Yilmaz spilloverindexes are computed for weekly return volatilities based on daily benchmarkstock indexes of US, UK and ten Asian countries. We found (i) the strengthening ofoverall volatility spillovers is not a temporary surge but persisted after thecrisis; (ii) the susceptibility ofindividual Asian stock markets to inward volatility transfers is linked to itsdegree of openness; and (iii) the Asian bourses are becoming more importantemitters of financial shocks since the crisis. Rolling regressions on volatilitylinkages reveal the relative dominance of the US over the Japanese and Chinesebourses, and the level of influence on Asian stock markets from the Chinesebourse has risen to …

Random Coefficient Continuous Systems: Testing For Extreme Sample Path Behaviour, Yubo Tao, Peter C. B. Phillips, Jun Yu

Research Collection School Of Economics

This paper studies a continuous time dynamic system with a random persistence parameter. The exact discrete time representation is obtained and related to several discrete time random coefficient models currently in the literature. The model distinguishes various forms of unstable and explosive behaviour according to specific regions of the parameter space that open up the potential for testing these forms of extreme behaviour. A two-stage approach that employs realized volatility is proposed for the continuous system estimation, asymptotic theory is developed, and test statistics to identify the different forms of extreme sample path behaviour are proposed. Simulations show that the …

The Weekend Effect In Television Viewership And Prime-Time Scheduling, Jung Won Yeo

Research Collection School Of Economics

The observed drops in the ratings of television programs on Fridays and Saturdays are likely a result of two factors: intrinsic contraction in demand for television watching and endogenous scheduling. I decompose the observed weekend effect into the effects from these two factors. To this end, I estimate a viewer choice model that uses aggregate Nielsen ratings data for prime-time network television shows over 11 years. The long span of the data enables me to control for television series qualities. The estimation results reveal that the estimated weekend effect is dampened as the empirical model accounts for variation in the …

Random Mechanism Design On Multidimensional Domains, Shurojit Chatterji, Huaxia Zeng

Research Collection School Of Economics

We study random mechanism design in an environment where the set of alternatives has a Cartesian product structure. We first show that all generalized random dictatorships are strategy-proof on a minimally rich domain if and only if the domain is a top-separable domain. We next generalize the notion of connectedness (Monjardet, 2009) to establish a particular class of top-separable domains: connected domains, and show that in the class of minimally rich and connected domains, the multidimensional single-peakedness restriction is necessary and sufficient for the design of a flexible random social choice function that is unanimous and strategy-proof. Such a flexible …

The Long-Term Health Effects Of Fetal Malnutrition: Evidence From The 1959-1961 China Great Leap Forward Famine, Seonghoon Kim, Belton Fleisher, Jessica Ya Sun

Research Collection School Of Economics

We report evidence of long-term adverse health impacts of fetal malnutrition exposure of middle-aged survivors of the 1959-1961 China Famine using data from the China Health and Retirement Longitudinal Study. We find that fetal exposure to malnutrition has large and long-lasting impacts on both physical health and cognitive abilities, including the risks of suffering a stroke, physical disabilities in speech, walking and vision, and measures of mental acuity even half a century after the tragic event. Our findings imply that policies and programs that improve the nutritional status of pregnant women yield benefits on the health of a fetus that …

Do Security Analysts Learn From Their Colleagues?, Kenny Phua, T. Mandy Tham, Chi Shen Wei

Research Collection Lee Kong Chian School Of Business

We examine how learning from colleagues affects security analyst forecast outcomes. We represent the brokerage house as an information network of analysts connected through industry overlaps in their coverage portfolios. Analysts who are more centrally connected in their brokerage network produce more accurate forecast estimates and generate more influential forecast revisions. Consistent with learning, more central analysts tend to unwind their colleagues’ recent forecast errors in their forecast revisions. Learning appears to benefit all colleagues, as working at more interconnected brokerages (i.e., denser networks) improves forecast accuracy for all analysts.

Strong Consistency Of Spectral Clustering For Stochastic Block Models, Liangjun Su, Wuyi Wang, Yichong Zhang

Research Collection School Of Economics

In this paper we prove the strong consistency of several methods based on thespectral clustering techniques that are widely used to study the communitydetection problem in stochastic block models (SBMs). We show that under someweak conditions on the minimal degree, the number of communities, and theeigenvalues of the probability block matrix, the K-means algorithm applied tothe Eigenvectors of the graph Laplacian associated with its first few largesteigenvalues can classify all individuals into the true community uniformlycorrectly almost surely. Extensions to both regularized spectral clustering anddegree-corrected SBMs are also considered. We illustrate the performance ofdifferent methods on simulated networks.

Specification Test For Spatial Autoregressive Models, Liangjun Su, Xi Qu

Research Collection School Of Economics

This article considers a simple test for the correct specification of linear spatial autoregressive models, assuming that the choice of the weight matrix Wn is true. We derive the limiting distributions of the test under the null hypothesis of correct specification and a sequence of local alternatives. We show that the test is free of nuisance parameters asymptotically under the null and prove the consistency of our test. To improve the finite sample performance of our test, we also propose a residual-based wild bootstrap and justify its asymptotic validity. We conduct a small set of Monte Carlo simulations to investigate …

The Business Of Business…Is Creating Shared Value, Singapore Management University

Perspectives@SMU

Corporations, governments and NGOs need to work together for mankind to exist sustainably, says the former Prime Minister of the Netherlands

China’S Growth Story: Plenty To Come, Singapore Management University

Perspectives@SMU

The Middle Kingdom has lots of room to grow if it could sort out economic distortions and optimise capital allocation. The tweaking of the one-child policy might also help

Evaluating The Empirical Performance Of Dsge Models: What Is The Role Of Search And Matching Frictions In The Labor And Capital Markets?, Weng Sam Mok

Dissertations and Theses Collection

A major perspective in explaining involuntary unemployment is to recognize the existence of job market frictions, in particular, job market matching frictions. The workhorse model employed is the Diamond- Mortensen-Pissarides (DMP) model. Similar to the labor market, the market for physical capital markets exhibits the same characteristics with a pool of unsold inventory as well as used capital that is sold and reallocated to other terms. Nevertheless, past research has highlighted several issues of the DMP model in matching the characteristics of the labor market. In a model enriched with labor participation flows and job separation, I evaluate the model …

Sources Of Health Financing And Health Outcomes: A Panel Data Analysis, Tomoki Fujii

Research Collection School Of Economics

We study the differential impacts of public and private sources of health spending on health outcomes using a triple difference approach. We find that private health spending has on average a higher health-promoting effect than public health spending. This result is robust with respect to the choice of outcome measure and covariates in the regression and driven primarily by the countries with ineffective governments. Once we restrict our sample to countries with effective governments, private health spending is no better than public health spending for improving the health outcome.

Bubble Testing Under Deterministic Trends, Xiaohu Wang, Jun Yu

Research Collection School Of Economics

This paper develops the asymptotic theory of the ordinary least squares estimator of the autoregressive (AR) coefficient in various AR models, when data is generated from trend-stationary models in different forms. It is shown that, depending on how the autoregression is specified, the commonly used right-tailed unit root tests may tend to reject the null hypothesis of unit root in favor of the explosive alternative. A new procedure to implement the right-tailed unit root tests is proposed. It is shown that when the data generating process is trend-stationary, the test statistics based on the proposed procedure cannot find evidence of …

Non-Separable Models With High-Dimensional Data, Liangjun Su, Takuya Ura, Yichong Zhang

Research Collection School Of Economics

This paper studies non-separable models with a continuous treatment when the dimension of the control variables is high and potentially larger than the effective sample size. We propose a three-step estimation procedure to estimate the average, quantile, and marginal treatment effects. In the first stage we estimate the conditional mean, distribution, and density objects by penalized local least squares, penalized local maximum likelihood estimation, and penalized conditional density estimation, respectively, where control variables are selected via a localized method of L1-penalization at each value of the continuous treatment. In the second stage we estimate the average and the marginal distribution …

Preferences With Changing Ambiguity Aversion, Jingyi Xue

Research Collection School Of Economics

This paper provides two equivalent representations for thegeneral class of uncertainty averse preferences studied by Cerreia-Vioglio,Maccheroni, Marinacci and Montrucchio (2011). The two representations employrespectively two important extensions of Gilboa and Schmeidler (1989)’s maxmindecision rule. The first is a weighted maxmin representation with anon-constant weight used in mixing the minimum and maximum expected utilities.The second is a variant constraint representation which evaluates a prospect bythe worst expected utility over a neighborhood of approximating priors wherethe size of the neighborhood depends on the prospect. The equivalent representationshave advantage in several respects. In the second part of this paper, we studythe wealth effect …

Fair Division With Uncertain Needs, Jingyi Xue

Research Collection School Of Economics

Imagine that agents have uncertain needs and a resource must be divided before uncertainty resolves. In this situation, waste typically occurs when the assignment to an agent turns out to exceed his realized need. How should the resource be divided in the face of possible waste? This is a question out of the scope of the existing rationing literature. Our main axiom to address the issue is no domination. It requires that no agent receive more of the resource than another while producing a larger expected waste, unless the other agent has been fully compensated. Together with conditional strict endowment …

Adaptive Estimation Of Continuous-Time Regression Models Using High-Frequency Data, Jia Li, Viktor Todorov, George Tauchen

Research Collection School Of Economics

We derive the asymptotic efficiency bound for regular estimates of the slope coefficient in a linear continuous-time regression model for the continuous martingale parts of two Itô semimartingales observed on a fixed time interval with asymptotically shrinking mesh of the observation grid. We further construct an estimator from high-frequency data that achieves this efficiency bound and, indeed, is adaptive to the presence of infinite-dimensional nuisance components. The estimator is formed by taking optimal weighted average of local nonparametric volatility estimates that are constructed over blocks of high-frequency observations. The asymptotic efficiency bound is derived under a Markov assumption for the …

Domestic Liquidity Conditions And Monetary Policy In Singapore, Hwee Kwan Chow-Tan

Research Collection School Of Economics

Singapore has an unusual exchange rate-centered monetary policy framework that has served the economy well over the past decades. Monetary policy operations are carried out by the central bank through the management of the Singapore dollar against a currency basket. As is well recognized, such foreign exchange interventions do have an impact on domestic liquidity conditions. However, in the case of Singapore, this tends to be counteracted by the liquidity impact of public sector operations related to the fiscal position and the national pension scheme. The central bank takes into account the net liquidity impact these and other autonomous money …

Belt, Road, And The Xinjiang Issue, Singapore Management University

Perspectives@SMU

The Belt Road Initiative promises economic development for China’s westernmost province but reality on the ground is less promising

Cooperation Is Key To Building China’S Bay Area, Singapore Management University

Perspectives@SMU

Guangdong-Hong Kong-Macao Greater Bay Area is expected to surpass the Tokyo Bay Area or San Francisco Bay Area in ten years, if the cities in the region can leverage their strengths, streamline their coordination mechanism and speed up the economy integration,” said Dr. Tse Kwok-leung, who currently serves as head of Economics and Policy Research at the Bank of China (Hong Kong) Limited. Dr. Tse was speaking at a seminar themed “How to Build a World-class Guangdong-Hong Kong-Macao Greater Bay Area” organized by the Hong Kong General Chamber of Commerce in July 2017.

What If Bots Collide And Collude In Setting Prices?, Singapore Management University

Perspectives@SMU

Conduct driven by algorithms is a challenge for competition law

Essays On Transportation Cost, Social Security Retirement Income And Housing Market, Naqun Huang

Dissertations and Theses Collection

This dissertation comprises three papers that study how transportation cost affect price distribution across a city, how home equity affects the timing of pension withdrawal, and potential implications of macroprudential policies on the price informativeness. Specifically, the first paper examines how a change in the cost of car ownership affects housing price gradient with respect to distance from the central business district (CBD) in Singapore. The second paper investigates how household home equity affect the timing of claiming Social Security Retirement Income (SSRI) in the United States. The third paper explores how countercyclical policies in Singapore real estate market affect …

On Random Assignment Problems, Peng Liu

Dissertations and Theses Collection

This dissertation studies the standard random assignment problem (Bogomolnaia and Moulin (2001)) and investigates the scope of designing a desirable random assignment rule. Specifically, I ask the following two questions:

1. Is there a reasonably restricted domain of preferences on which there exists an strategy-sd-efficient proof, sd-efficient and sd-envy-free or equal-treatment-of-equals rule?

2. Moreover, if the answer is in the affirmative, what is that rule?

As a starting point, attention is restricted to the connected domains (Monjardet (2009)). It is shown that if a connected domain admits a desirable random assignment rule, it is structured in a specific way: a …

Twin Momentum: Fundamental Trends Matter, Dashan Huang, Huacheng Zhang, Guofu Zhou

Research Collection Lee Kong Chian School Of Business

Using both the levels and the time-series trends of a collection of firms' major fundamentals, we find that fundamentals matter after all: they can also generate strong return momentum. A fundamental momentum strategy that goes long stocks with fundamental in the top quintile and short stocks with fundamental in the bottom quintile earns a monthly average return of 88 bps, and is comparable with the popular price momentum but has little correlation. Combining price momentum and fundamental momentum yields a twin momentum, which has an average return more than the sum of both price momentum and fundamental momentum. Twin momentum …

Structural Inference From Reduced Forms With Many Instruments, Peter C. B. Phillips, Wayne Yuan Gao

Research Collection School Of Economics

This paper develops exact finite sample and asymptotic distributions for structural equation tests based on partially restricted reduced form estimates. Particular attention is given to models with large numbers of instruments, wherein the use of partially restricted reduced form estimates is shown to be especially advantageous in statistical testing even in cases of uniformly weak instruments. Comparisons are made with methods based on unrestricted reduced forms, and numerical computations showing finite sample performance of the tests are reported. Some new results are obtained on inequalities between noncentral chi-squared distributions with different degrees of freedom that assist in analytic power comparisons.