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20 2023-11

FSS-DECO Seminar – “Adjustment with Many Regressors under Covariate-Adaptive Randomizations” by Prof. Ke MIAO, 22/11/2023, 14:00 @E21B-G002

2023-11-23T00:00:08+08:00

Seminar on Economics:

“Adjustment with Many Regressors under Covariate-Adaptive Randomizations”

 

Speaker: Prof. Ke MIAO

Assistant Professor

School of Economics, Fudan University

 

Abstract: Our paper discovers a new trade-off of using regression adjustments (RAs) in causal inference under covariate-adaptive randomizations (CARs). On one hand, RAs can improve the efficiency of causal estimators by incorporating information from covariates that are not used in the randomization. On the other hand, RAs can degrade estimation efficiency due to their estimation errors, which are not asymptotically negligible when the number of regressors is of the same order as the sample size. Ignoring the estimation errors of RAs may result in serious over-rejection of causal inference under the null hypothesis. To address the issue, we develop a unified inference theory for the regression-adjusted average treatment effect (ATE) estimator under CARs. Our theory has two key features: (1) it ensures the exact asymptotic size under the null hypothesis, regardless of whether the number of covariates is fixed or diverges no faster than the sample size; and (2) it guarantees weak efficiency improvement over the ATE estimator without adjustments.

 

Date: 22 Nov 2023 (Wed)

Time: 14:00-15:15

Language: English

Venue: E21B-G002

 

All are welcome!

 

Department of Economics
Faculty of Social Sciences
University of Macau

FSS-DECO Seminar – “Adjustment with Many Regressors under Covariate-Adaptive Randomizations” by Prof. Ke MIAO, 22/11/2023, 14:00 @E21B-G0022023-11-23T00:00:08+08:00
13 2023-11

FSS-DECO Seminar: “Undominated  Mechanisms” by Prof. Jiangtao LI, 15/11/2023, 14:00-15:15 @E21B-G002

2023-11-16T00:00:09+08:00

Seminar on Economics:

“Undominated  Mechanisms”

 

Speaker: Prof. Jiangtao LI

Associate Professor

School of Economics, Singapore Management University

 

Abstract: A mechanism is dominated by another mechanism if the latter mechanism generates a weakly higher ex post revenue for all valuation profiles and a strictly higher ex post revenue for at least one valuation profile. A mechanism is undominated if there is no mechanism that dominates it. We study the class of undominated mechanisms in various environments.

 

Date: 15 Nov 2023 (Wed)

Time: 14:00-15:15

Language: English

Venue: E21B-G002

 

All are welcome!

 

Department of Economics
Faculty of Social Sciences
University of Macau

FSS-DECO Seminar: “Undominated  Mechanisms” by Prof. Jiangtao LI, 15/11/2023, 14:00-15:15 @E21B-G0022023-11-16T00:00:09+08:00
6 2023-11

FSS ECON Seminar – “Provincial Administrative Borders, Trade, and Economic Growth” by Prof. Tongtong HAO, 8 Nov (Wed, 14:00-15:15)

2023-11-09T00:00:09+08:00

Seminar on Economics:

“Provincial Administrative Borders, Trade, and Economic Growth”

 

Speaker: Prof. Tongtong HAO

Assistant Professor

Lingnan College, Sun Yat-sen University, China

 

Abstract: How are trade barriers distributed across cities within and between provinces in China? This paper utilizes city-level VAT invoice (fapiao) transaction data and employs a spatial general equilibrium model to analyze city-to-city trade barriers in China. Our findings reveal a significant provincial border effect among cities. City trade costs between provinces are 40% higher than those within provinces, highlighting the presence of substantial administrative boundaries. A counterfactual analysis suggests that reducing trade costs can result in a 29% increase in GDP. Notably, the reduction in trade barriers between provinces accounts for three-quarters of this increase, while trade barriers within provinces contribute one-quarter. When provincial borders are eliminated, GDP could increase by 73%.

 

Date: 8 Nov 2023 (Wed)

Time: 14:00-15:15

Language: English

Venue: E21B-G002

 

All are welcome!

 

Department of Economics
Faculty of Social Sciences
University of Macau

FSS ECON Seminar – “Provincial Administrative Borders, Trade, and Economic Growth” by Prof. Tongtong HAO, 8 Nov (Wed, 14:00-15:15)2023-11-09T00:00:09+08:00
13 2023-10

Greater Bay Area Market Design Workshop 2023, 16-17 Oct 2023

2023-10-18T00:00:06+08:00

Greater Bay Area Market Design Workshop 2023

The “Greater Bay Area Market Design Workshop 2023” is an event with the objective of deepening our understanding of market design, an essential subfield within economics responsible for optimizing complex resource allocation problems. The tangible impact of market design is increasingly evident across many sectors. For instance, innovations in market design have led to significant improvements in university admissions systems by ensuring more efficient and equitable student placements. In the realm of public education, market design has been employed for teacher assignment, effectively matching educators to schools based on multiple factors like skills and needs, thereby potentially improving educational outcomes. Moreover, public procurement processes have been refined through well-designed auctions and contracting mechanisms, resulting in more cost-effective and transparent allocation of public resources. Market design principles have also been instrumental in reengineering school choice systems to better reflect parental preferences while simultaneously balancing fairness and efficiency considerations.

 

The workshop has several targeted objectives: it will serve as a nexus for connecting innovative market design research conducted in China’s Greater Bay Area with complementary efforts in Europe, the U.S., and Australia, enriching the international body of knowledge. The event also aims to provide a platform for emergent scholars to present their work. One of the pivotal goals is to move academic insights from theory to policy, accentuating the societal relevance and practical applicability of market design.

Date: 16-17 Oct 2023 (Mon & Tue)

Venue: E21B-G002, University of Macau

Language: English

Registration: https://inaciobo.com/workshop2023/registration/

 

All are welcome

Greater Bay Area Market Design Workshop 2023, 16-17 Oct 20232023-10-18T00:00:06+08:00
21 2023-08

PhD Oral Defence in the Faculty of Social Sciences, by Ms. Ut Meng HO, on 28 August 2023 (Monday)

2023-08-29T00:00:03+08:00

Dear Colleagues and Students,

We are pleased to announce that, Ms. Ut Meng HO, a PhD candidate in the Department of Economics of the Faculty of Social Sciences, is going to have her oral defence on 28 August 2023 (Monday).  You are welcome to attend the oral defence.

Date: 28 August 2023 (Monday)
Time: 16:30
Venue: E21B-G002
Thesis Title: Three Essays on Economic Growth, Innovation and Technology Transfer
Language: English

 

Examination Committee:

Chair: Prof. Richard FITZGERALD, Professor, Department of Communication, FSS, UM
Supervisor: Prof. Yibai YANG, Associate Professor, Department of Economics, FSS, UM
Members: Prof. Wai Hong HO, Associate Professor, Department of Economics, FSS, UM
  Prof. Jia YUAN, Associate Professor, Department of Finance and Business Economics, FBA, UM
  Prof. Shiyuan PAN, Professor, School of Economics, Faculty of Social Sciences, Zhejiang University

Kindly note that video and/or audio recording is PROHIBITED while the oral defence is in progress.  

Thank you for your kind attention.

 

Department of Economics
Faculty of Social Sciences
Tel. 8822 8916

PhD Oral Defence in the Faculty of Social Sciences, by Ms. Ut Meng HO, on 28 August 2023 (Monday)2023-08-29T00:00:03+08:00
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