Wholesale and Retail Banking

Difficulty: ★★★ | High-yield focus: Master definitions of commercial bank, financial intermediation, and class-tiered licensing in Part 1. Key exam mastery: Diagram the dual operational architecture of banking, contrast Class A commercial vs Class B development banks in Part 3, and solve the capital adequacy ratio ladder in Part 4.

Part 1: Core Concepts (2 Marks)

• ★ Financial Intermediation: The core economic process wherein banks mobilize surplus liquid funds from household and institutional depositors and allocate them as productive credit to deficit economic entities.
• ★ Class-Tiered Banking Structure: Nepal Rastra Bank’s regulatory classification system categorizing financial institutions into Class A (Commercial Banks), Class B (Development Banks), Class C (Finance Companies), and Class D (Microfinance Institutions).
• ★ Credit Creation Multiplier: The institutional mechanism whereby commercial banks expand money supply through fractional reserve banking: $M = 1 / \text{CRR}$.

Part 2: Structural Frameworks (10 Marks)

Operational Division and Structure of the Nepalese Banking Industry

Modern commercial banks operate through two distinct business models: wholesale (corporate/institutional) banking and retail (consumer/SME) banking. While wholesale banking handles high-value, low-volume institutional transactions, retail banking serves mass-market individual consumers with high-volume, low-value standardized products.

Visual Architecture: Wholesale vs. Retail Banking Ecosystem

In Nepal, following extensive consolidation driven by NRB capital enhancement directives and voluntary mergers, the banking sector is anchored by 20 Class A commercial banks. These institutions intermediate over 85% of total banking assets in the economy. Governed under the Bank and Financial Institutions Act (BAFIA), 2073, banks must comply with unified prudential guidelines including capital adequacy frameworks (Basel III), single borrower exposure limits, and mandatory priority sector lending quotas.

Part 3: Distinction Tables

Class A Commercial Banks vs. Class B Development Banks in Nepal

Part 4: Worked Problems & Exam Traps

Worked Numerical: Capital Adequacy Ratio (CAR) and Risk-Weighted Assets

A commercial bank in Kathmandu reports the following balance sheet exposures:

• Tier 1 Core Capital: NPR 12.50 Billion
• Tier 2 Supplementary Capital: NPR 4.00 Billion
• Cash and NRB Balance (0% risk weight): NPR 15.00 Billion
• Nepal Government Securities (0% risk weight): NPR 30.00 Billion
• Fully Secured Residential Mortgages (60% risk weight): NPR 25.00 Billion
• Corporate and Commercial Loans (100% risk weight): NPR 80.00 Billion
• Off-Balance-Sheet Trade Letters of Credit (50% credit conversion, 100% risk weight): NPR 10.00 Billion

Step 1: Calculate Total Risk-Weighted Assets (RWA)

• Cash and NRB Balance: $15.00 \times 0\% = \text{NPR } 0.00\text{ Billion}$
• Government Securities: $30.00 \times 0\% = \text{NPR } 0.00\text{ Billion}$
• Residential Mortgages: $25.00 \times 60\% = \text{NPR } 15.00\text{ Billion}$
• Corporate Loans: $80.00 \times 100\% = \text{NPR } 80.00\text{ Billion}$
• Off-Balance-Sheet L/C RWA: $(10.00 \times 50\%) \times 100\% = \text{NPR } 5.00\text{ Billion}$

  Swipe to see the full formula↔

  $$\text{Total RWA} = 0 + 0 + 15.00 + 80.00 + 5.00 = \text{NPR } 100.00\text{ Billion}$$

Step 2: Compute Tier 1 Capital Ratio and Total Capital Adequacy Ratio (CAR)

Step 3: Evaluate NRB Regulatory Compliance Under NRB Capital Adequacy Framework (Basel III), minimum Tier 1 capital must be at least 6.0% (plus 2.5% Capital Conservation Buffer = 8.5%), and Total CAR must be at least 11.0%. The bank exceeds requirements comfortably (12.5% Tier 1, 16.5% Total CAR).

TU Exam Trap: Students frequently apply risk weights directly to unadjusted off-balance sheet exposures without first multiplying by the Credit Conversion Factor (CCF). Students lose marks here because contingent liabilities must be converted to on-balance-sheet equivalents before applying risk weights.