Economics Commons^™

Singapore’S Life Program: Actuarial Framework, Longevity Risk And Impact Of Annuity Fund Return, Koon Shing Kwong, Yiu Kuen Tse, Wai-Sum Chan

Research Collection School Of Economics

The Central Provident Fund (CPF) is a defined-contribution savings plan forming the key pillar of the pension system in Singapore. The CPF Lifelong Income For the Elderly (LIFE) program, which provides lifetime income for retirees, is a mandatory pension scheme for all Singapore residents. In this paper we construct an actuarial framework to analyze the LIFE program. We use this framework to study the plan payout outcomes with respect to changes in mortality and annuity fund return assumptions. We also examine the effects of some possible changes in the program on the payouts and bequests.

East Asia Pacific Economies: Looking Good, Singapore Management University

Perspectives@SMU

The World Bank expects recovering global trade and commodity prices to buoy regional prospects

Will Politics Trump Economic Growth?, Singapore Management University

Perspectives@SMU

While economic uncertainties remain, investors should not worry about the White House jeopardising the U.S. economy

Enhancing Singapore’S Pension Scheme: A Blueprint For Further Flexibility, Koon Shing Kwong, Yiu Kuen Tse, Wai Sum Chan

Research Collection School of Economics

Building a social security system to ensure Singapore residents have peace of mind in funding for retirement has been at the top of Singapore government’s policy agenda over the last decade. Implementation of the Lifelong Income For the Elderly (LIFE) scheme in 2009 clearly shows that the government spares no effort in improving its pension scheme to boost its residents’ income after retirement. Despite the recent modifications to the LIFE scheme, Singapore residents must still choose between two plans: the Standard and Basic plans. To enhance the flexibility of the LIFE scheme with further streamlining of its fund management, we …

Does Wage-Inflation Targeting Complement Foreign Exchange Intervention? An Evaluation Of A Multi-Target, Two-Instrument Monetary Policy Framework, Taojun Xie, Jingting Liu, Joseph D. Alba, Wai-Mun Chia

Research Collection Lee Kong Chian School Of Business

We assess the inclusion of wage inflation as an intermediate target of an emerging central bank using a dynamic stochastic general equilibrium model with sticky wages and prices calibrated for the South Korean economy. The model includes wage inflation as an additional target jointly with domestic price inflation and the output gap in a Taylor- type interest rate rule operating with a sterilized foreign exchange (FX) intervention rule. Our results show a complementary relationship between wage inflation targeting and price inflation targeting. That is, by supplementing price inflation targeting with wage inflation targeting, welfare improves for cases with and without …

Granger Causality And Structural Causality In Cross-Section And Panel Data, Xun Lu, Liangjun Su, Halbert White

Research Collection School Of Economics

Granger noncausality in distribution is fundamentally a probabilistic conditional independence notion that can be applied not only to time series data but also to cross-section and panel data. In this paper, we provide a natural definition of structural causality in cross-section and panel data and forge a direct link between Granger (G-) causality and structural causality under a key conditional exogeneity assumption. To put it simply, when structural effects are well defined and identifiable, G-non-causality follows from structural noncausality, and with suitable conditions (e.g., separability or monotonicity), structural causality also implies G-causality. This justifies using tests of G-non-causality to test …

Firm Boundaries And Financing With Opportunistic Stakeholder Behaviour, Madhav S. Aney, Elie Appelbaum, Sanjay Banerji

Research Collection School Of Economics

We explore the impact of strategic behaviour between three major stakeholders, namelyequity holders, debt holders, and a supplier of a critical input, on the choice of a firm’s capitalstructure and its organisational design, determining in-house production versus outsourcing theprocurement of the critical input. We show that an opportunistic coalition of the supplierand debt holders can trigger strategic bankruptcy even when the firm is solvent. Equity holdersrespond to this by either eliminating the supplier by producing the input in-house, or by reducingthe exposure to debt by funding the firm’s capital requirement through equity. Both responsescreate inefficiency since production of the input …

Asymptotic Theory For Estimating Drift Parameters In The Fractional Vasicek Model, Weilin Xiao, Jun Yu

Research Collection School Of Economics

This paper develops the asymptotic theory for estimators of two parameters in the drift function in the fractional Vasicek model when a continuous record of observations is available. The fractional Vasicek model is assumed to be driven by the fractional Brownian motion with a known Hurst parameter greater than or equal to one half. It is shown that the asymptotic theory for the persistent parameter depends critically on its sign, corresponding asymptotically to the stationary case, the explosive case, and the null recurrent case. In all three cases, the least squares method is considered. When the persistent parameter is positive, …

Corporate Donations And Shareholder Value, Hao Liang, Luc Renneboog

Research Collection Lee Kong Chian School Of Business

Do corporate donations enhance shareholder wealth or reflect agency problems? We address this question for a global sample of firms whereby we distinguish between charitable and political donations, as well as between donations in cash and in kind. We find that charitable donations are positively related to financial performance and firm value, which is consistent with the value-enhancement hypothesis. This positive effect on firm value is stronger for cash than in-kind donations. In contrast, political donations do not appear to enhance shareholder value, but rather tend to reflect agency problems, as they are higher for firms with poor internal corporate …

A Tale Of Two Cities: Global Entrepreneurship Monitor 2016, Singapore Management University

Perspectives@SMU

In recent years, Hong Kong and Shenzhen have experienced an explosive growth in the start-up support ecosystem.

Weak Law V Strong Ties: An Empirical Study Of Business Investment, Law And Political Connections In China, Wei Zhang, Ji Li

Research Collection Yong Pung How School Of Law

Based on a large-scale survey of Chinese entrepreneurs, our study explores how institutions (formal and informal) influence investment decisions made by private companies. The study finds that, consistent with the conventional view, a more effective legal system is correlated with short-term general investment, and that the judiciary is important mainly because of its restraint over the state. The role of effective courts, however, diminishes when private entrepreneurs consider making long-term investment. We find a positive association between the entrepreneurs’ political backgrounds and their R&D investment, suggesting that Chinese courts, in spite of decades of reform, are not yet viewed as …

Local And Global Sd-Strategy-Proofness Of Ordinal Mechanisms On Block-Connected Domains, Peng Liu

Research Collection School Of Economics

The adjacency by Monjardet (2009) is weakened to a flip between two adjacently ranked blocks and called block-adjacency. The connectedness defined accordingly, blockconnectedness, covers some interesting unconnected domains. An ordinal mechanism on a block-connected domain is block-adjacent sd-strategy-proof if reporting the true preference always leads to a lottery that stochastically dominates the lottery delivered by reporting any preference block-adjacent to the sincere one.A condition on a block-connected domain called path-nestedness is proposed and shown sufficient for the equivalence between sd-strategy-proofness and block-adjacent sd-strategy-proofness. The sequentially dichotomous domain by Liu (2017) is an application. In addition, we systematically search for the …

How To Describe Objects?, Liu Peng

Research Collection School Of Economics

This paper addresses the problem of randomly allocating n indivisible objects to n agents where each object can be evaluated according to a set of characteristics. The planner chooses a subset of characteristics and a ranking of them. Then she describes each object as a list of values according to the ranking of those chosen characteristics. Being informed of such a description, each agent figures out her preference that is lexicographically separable according to the characteristics chosen and ranked by the planner. Hence a description of the objects induces a collection of admissible preferences. We call a description good if …

Determinants Of Urban Land Supply In China: How Do Political Factors Matter?, Wen-Tai Hsu, Xiaolu Li, Yang Tang, Jing Wu

Research Collection School Of Economics

This paper explores two political factors for their potential effects on urban land supply in China: corruption, and competition for promotion. We find that standard urban economic predictions hold in the sense that both population and income increases are strongly significant determinants for the increase in urban land supply. Conditional on these demand-side factors, we find that the usage of two-stage auctions (as a proxy for corruption) is highly correlated with the increase in land supply. The corruption effects are strongest for commercial land, followed by residential land and then industrial land. To shed light on the competition motives among …

Lag Length Selection In Panel Autoregression, Chirok Han, Peter C. B. Phillips, Donggyu Sul

Research Collection School Of Economics

Model selection by BIC is well known to be inconsistent in the presence of incidental parameters. This article shows that, somewhat surprisingly, even without fixed effects in dynamic panels BIC is inconsistent and overestimates the true lag length with considerable probability. The reason for the inconsistency is explained, and the probability of overestimation is found to be 50% asymptotically. Three alternative consistent lag selection methods are considered. Two of these modify BIC, and the third involves sequential testing. Simulations evaluate the performance of these alternative lag selection methods in finite samples.

Joint Spatial Time Series Epidemiological Analysis Of Malaria And Cutaneous Leishmaniasis Infection, O. A. Adegboye, M. Al-Saghir, Denis H. Y. Leung

Research Collection School Of Economics

Malaria and leishmaniasis are among the two most important health problems of many developing countries especially in the Middle East and North Africa. It is common for vector-borne infectious diseases to have similar hotspots which may be attributed to the overlapping ecological distribution of the vector. Hotspot analyses were conducted to simultaneously detect the location of local hotspots and test their statistical significance. Spatial scan statistics were used to detect and test hotspots of malaria and cutaneous leishmaniasis (CL) in Afghanistan in 2009. A multivariate negative binomial model was used to simultaneously assess the effects of environmental variables on malaria …

Econometric Reviews Honors Esfandiar Maasoumi, Peter C. B. Phillips, Aman Ullah

Research Collection School Of Economics

This Special Issue of Econometric Reviews (ER) is a tribute to Esfandiar Maasoumi for his longstanding contributions to the econometrics profession as an outstanding researcher, a revered teacher and supervisor, and a journal editor of three decades, all of which manifests his extraordinary devotion to the discipline of econometrics and to its growing community of students and scholars. Essie, as he is universally known to his friends, colleagues, and the international community, took on the editorship of ER in 1987. At that point, as (very) senior members of the profession will remember, the journal had a paperback cover, no formal …

Reduced Forms And Weak Instrumentation, Peter C. B. Phillips

Research Collection School Of Economics

This paper develops exact finite sample and asymptotic distributions for a class of reduced form estimators and predictors, allowing for the presence of unidentified or weakly identified structural equations. Weak instrument asymptotic theory is developed directly from finite sample results, unifying earlier findings and showing the usefulness of structural information in making predictions from reduced form systems in applications. Asymptotic results are reported for predictions from models with many weak instruments. Of particular interest is the finding that, in unidentified and weakly identified structural models, partially restricted reduced form predictors have considerably smaller forecast mean square errors than unrestricted reduced …

The Selection And Causal Effects Of Work Incentives On Labor Productivity: Evidence From A Two Stage Randomized Controlled Trial In Malawi, Hyuncheol Bryant Kim, Seonghoon Kim, Thomas T. Kim

Research Collection School Of Economics

Incentives are essential to promote labor productivity. We implemented a two-stage field experiment to measure effects of career and wage incentives on productivity through self-selection and causal effect channels. First, workers were hired with either career or wage incentives. After employment, a random half of workers with career incentives received wage incentives and a random half of workers with wage incentives received career incentives. We find that career incentives attract higher-performing workers than wage incentives but do not increase productivity for existing workers. Instead, wage incentives increase productivity for existing workers. Observable characteristics are limited in explaining the selection effect.

Decoding Chinese Foreign Policy, Singapore Management University

Perspectives@SMU

States need to understand Beijing’s practice of ‘false dilemmas’ and its revanchist narrative, and stand firm without provoking China unnecessarily

Random Assignments On Preference Domains With A Tier Structure, Peng Liu, Huaxia Zeng

Research Collection School Of Economics

We address a standard random assignment problem (Bogomolnaia and Moulin (2001)) and search forsd-strategy-proof, sd-efficient and sd-envy-free or equal-treatment-of-equals rules.Our main result is that on a connected domain (Sato (2013)),if there exists a rule satisfying these axioms, this domain is endowed with a restricted tier structure.Furthermore, we show that, on such a domain, the Probabilistic Serial rule is the unique rulethat satisfies these axioms.As an extension, we introduce outside options to the model, and establish the same characterizations.

Deviance Information Criterion For Bayesian Model Selection: Justification And Variation, Yong Li, Jun Yu, Tao Zeng

Research Collection School Of Economics

Deviance information criterion (DIC) has been extensively used for making Bayesian model selection. It is a Bayesian version of AIC and chooses a model that gives the smallest expected Kullback-Leibler divergence between the data generating process (DGP) and a predictive distribution asymptotically. We show that when the plug-in predictive distribution is used, DIC can have a rigorous decision-theoretic justification under regularity conditions. An alternative expression for DIC, based on the Bayesian predictive distribution, is proposed. The new DIC has a smaller penalty term than the original DIC and is very easy to compute from the MCMC output. It is invariant …

Jobs For Justice(S): Corruption In The Supreme Court Of India, Madhav S. Aney, Shubhankar Dam, Giovanni Ko

Research Collection School Of Economics

We investigate whether judicial decisions are affected by career concerns of judges byanalysing two questions: Do judges respond to pandering incentives by ruling in favourof the government in the hope of receiving jobs after retiring from the Court? Does thegovernment actually reward judges who ruled in its favour with prestigious jobs? To answerthese questions we construct a dataset of all Supreme Court of India cases involving thegovernment from 1999 till 2014, with an indicator for whether the decision was in its favouror not. We find that pandering incentives have a causal effect on judicial decision-making.The exposure of a judge to …

Vat Treatment Of Financial Institutions, Ismail Baydur, Fatih Yilmaz

Research Collection School Of Economics

This paper studies the effects of exempt treatment of financial services under a VATsystem. We develop a general equilibrium model with elastic labor supply, endogenous entry, anda banking sector. The banking sector provides loan services to producers and payment servicesto consumers. Our model display three key distortions under exempt treatment: (i) self-supplybias in the banking sector, (ii) consumption distortions, (iii) input distortions and tax cascading.Then, we calibrate our model to match the salient features of the tax system EU countries. Atax neutral policy regime switch from exempt treatment to full-taxation in loan services improveswelfare about 4%. Shutting down the entry …

Determinants Of Urban Land Supply In People's Republic Of China: How Do Political Factors Matter?, Wen-Tai Hsu, Xiaolu Li, Yang Tang, Jing Wu

Research Collection School Of Economics

This paper explores whether and how corruption and competition-for-promotion motives affect urban land supply in the People's Republic of China. Conditional on demand-side factors, we find that corruption is highly correlated with an increase in land supply. The corruption effects are strongest for commercial land, followed by residential land, and then industrial land. To shed light on the competition motives among prefectural leaders, we examine how the number of years in office affects land supply and distinguish among different hypotheses. Our empirical results show robust rising trends in land sales. These results are consistent with the hypothesis that among prefectural …

Dissecting A Giant: The Commodification Of Rural China, Singapore Management University

Research@SMU: Connecting the Dots

Rapid growth is causing unprecedented transformations in the social fabric and market structure of rural China, Professors Forrest Zhang and John Donaldson, researchers at SMU investigate.

See the papers:

• Class differentiation in rural China: Dynamics of accumulation, commodification and state intervention;
• Political dynamics in land commodification: Commodifying rural land development rights in Chengdu, China
• The rise of agrarian capitalism with Chinese characteristics: Agricultural modernization, agribusiness and collective land rights
• China's agrarian reform and the privatization of land: A contrarian view

Letting Cities Develop Naturally, Singapore Management University

Research@SMU: Connecting the Dots

Professor Hsu Wen-Tai uses mathematical models to study urban landscapes and what makes big and small cities different.

See the paper: Optimal city hierarchy: A dynamic programming approach to Central Place Theory

The Yuan Goes Global, Singapore Management University

Research@SMU: Connecting the Dots

Professor Chow Hwee Kwan studies how Asian countries manage their currencies, and the impact of these policies on their economies.

See the paper: Is the Renminbi East Asia’s dominant reference currency? A reconsideration

Giving Economic Data A Voice, Singapore Management University

Research@SMU: Connecting the Dots

Professor Su Liangjun is developing new techniques in econometrics to provide a more realistic understanding of the economy.

See the papers:

• Testing homogeneity in panel data models with interactive fixed effects
• Identifying latent structures in panel data
• Shrinkage estimation of dynamic panel data models with interactive fixed effects

The Race Against Time, Singapore Management University

Research@SMU: Connecting the Dots

Professor Tse Yiu Kuen is developing econometric models that can provide us with a clearer picture of global markets.

See the papers:

• Estimation of high-frequency volatility: An autoregressive conditional duration approach
• Intraday periodicity adjustments of transaction duration and their effects on high-frequency volatility estimation;
• Intraday value-at-risk: An asymmetric autoregressive conditional duration approach